149594550 has 72 divisors (see below), whose sum is σ = 431586216. Its totient is φ = 34191360.

The previous prime is 149594521. The next prime is 149594551. The reversal of 149594550 is 55495941.

149594550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149594551) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2827 + ... + 17526.

It is an arithmetic number, because the mean of its divisors is an integer number (5994253).

Almost surely, 2^149594550 is an apocalyptic number.

149594550 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 149594550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215793108).

149594550 is an abundant number, since it is smaller than the sum of its proper divisors (281991666).

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

149594550 is a wasteful number, since it uses less digits than its factorization.

149594550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20382 (or 20370 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The square root of 149594550 is about 12230.8850865340. The cubic root of 149594550 is about 530.8501249234.

The spelling of 149594550 in words is "one hundred forty-nine million, five hundred ninety-four thousand, five hundred fifty".