149996597 has 2 divisors, whose sum is σ = 149996598. Its totient is φ = 149996596.

The previous prime is 149996591. The next prime is 149996617. The reversal of 149996597 is 795699941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125305636 + 24690961 = 11194^2 + 4969^2 .

It is a cyclic number.

It is not a de Polignac number, because 149996597 - 2²⁰ = 148948021 is a prime.

It is a super-2 number, since 2×149996597² = 44997958223160818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149996591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74998298 + 74998299.

It is an arithmetic number, because the mean of its divisors is an integer number (74998299).

Almost surely, 2^149996597 is an apocalyptic number.

It is an amenable number.

149996597 is a deficient number, since it is larger than the sum of its proper divisors (1).

149996597 is an equidigital number, since it uses as much as digits as its factorization.

149996597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5511240, while the sum is 59.

The square root of 149996597 is about 12247.3097862347. The cubic root of 149996597 is about 531.3252665308.

The spelling of 149996597 in words is "one hundred forty-nine million, nine hundred ninety-six thousand, five hundred ninety-seven".