154168913 has 2 divisors, whose sum is σ = 154168914. Its totient is φ = 154168912.

The previous prime is 154168853. The next prime is 154168933. The reversal of 154168913 is 319861451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86731969 + 67436944 = 9313^2 + 8212^2 .

It is a cyclic number.

It is not a de Polignac number, because 154168913 - 2⁶ = 154168849 is a prime.

It is not a weakly prime, because it can be changed into another prime (154168933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77084456 + 77084457.

It is an arithmetic number, because the mean of its divisors is an integer number (77084457).

Almost surely, 2^154168913 is an apocalyptic number.

It is an amenable number.

154168913 is a deficient number, since it is larger than the sum of its proper divisors (1).

154168913 is an equidigital number, since it uses as much as digits as its factorization.

154168913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 38.

The square root of 154168913 is about 12416.4774795431. The cubic root of 154168913 is about 536.2067417829.

The spelling of 154168913 in words is "one hundred fifty-four million, one hundred sixty-eight thousand, nine hundred thirteen".