149399536 has 160 divisors (see below), whose sum is σ = 377975808. Its totient is φ = 56094720.

The previous prime is 149399533. The next prime is 149399557. The reversal of 149399536 is 635993941.

It is a self number, because there is not a number n which added to its sum of digits gives 149399536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149399533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 894525 + ... + 894691.

Almost surely, 2^149399536 is an apocalyptic number.

149399536 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 149399536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188987904).

149399536 is an abundant number, since it is smaller than the sum of its proper divisors (228576272).

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

149399536 is a wasteful number, since it uses less digits than its factorization.

149399536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 233 counting only the distinct ones).

The product of its digits is 787320, while the sum is 49.

The square root of 149399536 is about 12222.9102917431. The cubic root of 149399536 is about 530.6193495292.

The spelling of 149399536 in words is "one hundred forty-nine million, three hundred ninety-nine thousand, five hundred thirty-six".