149997696 has 64 divisors (see below), whose sum is σ = 402638880. Its totient is φ = 49471488.

The previous prime is 149997691. The next prime is 149997707. The reversal of 149997696 is 696799941.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (149997691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35235 + ... + 39261.

Almost surely, 2^149997696 is an apocalyptic number.

149997696 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 149997696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201319440).

149997696 is an abundant number, since it is smaller than the sum of its proper divisors (252641184).

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

149997696 is an equidigital number, since it uses as much as digits as its factorization.

149997696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141 (or 4129 counting only the distinct ones).

The product of its digits is 6613488, while the sum is 60.

The square root of 149997696 is about 12247.3546531486. The cubic root of 149997696 is about 531.3265641714.

The spelling of 149997696 in words is "one hundred forty-nine million, nine hundred ninety-seven thousand, six hundred ninety-six".