149597550 has 48 divisors (see below), whose sum is σ = 412228080. Its totient is φ = 39892320.

The previous prime is 149597527. The next prime is 149597563. The reversal of 149597550 is 55795941.

149597550 is a `hidden beast` number, since 1 + 4 + 9 + 5 + 97 + 550 = 666.

It is a super-3 number, since 3×149597550³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 149597496 and 149597505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54057 + ... + 56756.

It is an arithmetic number, because the mean of its divisors is an integer number (8588085).

Almost surely, 2^149597550 is an apocalyptic number.

149597550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149597550 is an abundant number, since it is smaller than the sum of its proper divisors (262630530).

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

149597550 is a wasteful number, since it uses less digits than its factorization.

149597550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110834 (or 110823 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The square root of 149597550 is about 12231.0077262669. The cubic root of 149597550 is about 530.8536734923.

The spelling of 149597550 in words is "one hundred forty-nine million, five hundred ninety-seven thousand, five hundred fifty".