154457913 has 4 divisors (see below), whose sum is σ = 205943888. Its totient is φ = 102971940.

The previous prime is 154457909. The next prime is 154457921. The reversal of 154457913 is 319754451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 319754451 = 3 ⋅106584817.

It is not a de Polignac number, because 154457913 - 2² = 154457909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154457923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25742983 + ... + 25742988.

It is an arithmetic number, because the mean of its divisors is an integer number (51485972).

Almost surely, 2^154457913 is an apocalyptic number.

It is an amenable number.

154457913 is a deficient number, since it is larger than the sum of its proper divisors (51485975).

154457913 is an equidigital number, since it uses as much as digits as its factorization.

154457913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51485974.

The product of its digits is 75600, while the sum is 39.

The square root of 154457913 is about 12428.1097919193. The cubic root of 154457913 is about 536.5415845128.

The spelling of 154457913 in words is "one hundred fifty-four million, four hundred fifty-seven thousand, nine hundred thirteen".