149136 has 40 divisors (see below), whose sum is σ = 416640. Its totient is φ = 45696.

The previous prime is 149119. The next prime is 149143. The reversal of 149136 is 631941.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 8.

It is an unprimeable number.

149136 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505 + ... + 743.

It is an arithmetic number, because the mean of its divisors is an integer number (10416).

2¹⁴⁹¹³⁶ is an apocalyptic number.

149136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208320).

149136 is an abundant number, since it is smaller than the sum of its proper divisors (267504).

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

149136 is a wasteful number, since it uses less digits than its factorization.

149136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 257 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

The square root of 149136 is about 386.1813045708. The cubic root of 149136 is about 53.0307167381.

The spelling of 149136 in words is "one hundred forty-nine thousand, one hundred thirty-six".