149850 has 60 divisors (see below), whose sum is σ = 427614. Its totient is φ = 38880.

The previous prime is 149839. The next prime is 149861. The reversal of 149850 is 58941.

149850 is nontrivially palindromic in base 7.

It is an interprime number because it is at equal distance from previous prime (149839) and next prime (149861).

It can be written as a sum of positive squares in 3 ways, for example, as 136161 + 13689 = 369^2 + 117^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 4032 + ... + 4068.

2¹⁴⁹⁸⁵⁰ is an apocalyptic number.

149850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213807).

149850 is an abundant number, since it is smaller than the sum of its proper divisors (277764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149850 is a wasteful number, since it uses less digits than its factorization.

149850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 149850 is about 387.1046370169. The cubic root of 149850 is about 53.1152115760.

Subtracting from 149850 its reverse (58941), we obtain a palindrome (90909).

It can be divided in two parts, 149 and 850, that added together give a palindrome (999).

The spelling of 149850 in words is "one hundred forty-nine thousand, eight hundred fifty".