154075457 has 2 divisors, whose sum is σ = 154075458. Its totient is φ = 154075456.

The previous prime is 154075429. The next prime is 154075469. The reversal of 154075457 is 754570451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139452481 + 14622976 = 11809^2 + 3824^2 .

It is an emirp because it is prime and its reverse (754570451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154075457 - 2⁶ = 154075393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154075457.

It is not a weakly prime, because it can be changed into another prime (154077457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77037728 + 77037729.

It is an arithmetic number, because the mean of its divisors is an integer number (77037729).

Almost surely, 2^154075457 is an apocalyptic number.

It is an amenable number.

154075457 is a deficient number, since it is larger than the sum of its proper divisors (1).

154075457 is an equidigital number, since it uses as much as digits as its factorization.

154075457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98000, while the sum is 38.

The square root of 154075457 is about 12412.7135228362. The cubic root of 154075457 is about 536.0983717588.

The spelling of 154075457 in words is "one hundred fifty-four million, seventy-five thousand, four hundred fifty-seven".