154157057 has 2 divisors, whose sum is σ = 154157058. Its totient is φ = 154157056.

The previous prime is 154157053. The next prime is 154157083. The reversal of 154157057 is 750751451.

It is a Cunningham number, because it is equal to 12416²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154157056 + 1 = 12416^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 154157057 - 2² = 154157053 is a prime.

It is not a weakly prime, because it can be changed into another prime (154157053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77078528 + 77078529.

It is an arithmetic number, because the mean of its divisors is an integer number (77078529).

It is a Proth number, since it is equal to 9409 ⋅ 2¹⁴ + 1 and 9409 < 2¹⁴.

Almost surely, 2^154157057 is an apocalyptic number.

It is an amenable number.

154157057 is a deficient number, since it is larger than the sum of its proper divisors (1).

154157057 is an equidigital number, since it uses as much as digits as its factorization.

154157057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24500, while the sum is 35.

The square root of 154157057 is about 12416.0000402706. Note that the first 4 decimals coincide. The cubic root of 154157057 is about 536.1929961884.

The spelling of 154157057 in words is "one hundred fifty-four million, one hundred fifty-seven thousand, fifty-seven".