154164557 has 2 divisors, whose sum is σ = 154164558. Its totient is φ = 154164556.

The previous prime is 154164541. The next prime is 154164623. The reversal of 154164557 is 755461451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148693636 + 5470921 = 12194^2 + 2339^2 .

It is a cyclic number.

It is not a de Polignac number, because 154164557 - 2⁴ = 154164541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154164557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154104557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77082278 + 77082279.

It is an arithmetic number, because the mean of its divisors is an integer number (77082279).

Almost surely, 2^154164557 is an apocalyptic number.

It is an amenable number.

154164557 is a deficient number, since it is larger than the sum of its proper divisors (1).

154164557 is an equidigital number, since it uses as much as digits as its factorization.

154164557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84000, while the sum is 38.

The square root of 154164557 is about 12416.3020662353. The cubic root of 154164557 is about 536.2016916109.

The spelling of 154164557 in words is "one hundred fifty-four million, one hundred sixty-four thousand, five hundred fifty-seven".