149456057 has 2 divisors, whose sum is σ = 149456058. Its totient is φ = 149456056.

The previous prime is 149456017. The next prime is 149456101. The reversal of 149456057 is 750654941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144456361 + 4999696 = 12019^2 + 2236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149456057 is a prime.

It is a super-2 number, since 2×149456057² = 44674225947974498, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149456017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74728028 + 74728029.

It is an arithmetic number, because the mean of its divisors is an integer number (74728029).

Almost surely, 2^149456057 is an apocalyptic number.

It is an amenable number.

149456057 is a deficient number, since it is larger than the sum of its proper divisors (1).

149456057 is an equidigital number, since it uses as much as digits as its factorization.

149456057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 149456057 is about 12225.2221656704. Note that the first 3 decimals coincide. The cubic root of 149456057 is about 530.6862559283.

The spelling of 149456057 in words is "one hundred forty-nine million, four hundred fifty-six thousand, fifty-seven".