154531913 has 2 divisors, whose sum is σ = 154531914. Its totient is φ = 154531912.

The previous prime is 154531879. The next prime is 154531957. The reversal of 154531913 is 319135451.

154531913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154455184 + 76729 = 12428^2 + 277^2 .

It is an emirp because it is prime and its reverse (319135451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154531913 - 2¹⁰ = 154530889 is a prime.

It is a super-2 number, since 2×154531913² = 47760224270879138, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 154531913.

It is not a weakly prime, because it can be changed into another prime (154531813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77265956 + 77265957.

It is an arithmetic number, because the mean of its divisors is an integer number (77265957).

Almost surely, 2^154531913 is an apocalyptic number.

It is an amenable number.

154531913 is a deficient number, since it is larger than the sum of its proper divisors (1).

154531913 is an equidigital number, since it uses as much as digits as its factorization.

154531913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 32.

The square root of 154531913 is about 12431.0865574977. The cubic root of 154531913 is about 536.6272556135.

The spelling of 154531913 in words is "one hundred fifty-four million, five hundred thirty-one thousand, nine hundred thirteen".