149556037 has 2 divisors, whose sum is σ = 149556038. Its totient is φ = 149556036.

The previous prime is 149555981. The next prime is 149556067. The reversal of 149556037 is 730655941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118352641 + 31203396 = 10879^2 + 5586^2 .

It is a cyclic number.

It is not a de Polignac number, because 149556037 - 2⁷ = 149555909 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149556067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74778018 + 74778019.

It is an arithmetic number, because the mean of its divisors is an integer number (74778019).

Almost surely, 2^149556037 is an apocalyptic number.

It is an amenable number.

149556037 is a deficient number, since it is larger than the sum of its proper divisors (1).

149556037 is an equidigital number, since it uses as much as digits as its factorization.

149556037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 149556037 is about 12229.3105692839. The cubic root of 149556037 is about 530.8045653634.

The spelling of 149556037 in words is "one hundred forty-nine million, five hundred fifty-six thousand, thirty-seven".