154164457 has 4 divisors (see below), whose sum is σ = 159137536. Its totient is φ = 149191380.

The previous prime is 154164433. The next prime is 154164467. The reversal of 154164457 is 754461451.

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: 754461451 = 83 ⋅9089897.

It is a cyclic number.

It is not a de Polignac number, because 154164457 - 2²³ = 145775849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154164427) 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 in 3 ways as a sum of consecutive naturals, for example, 2486493 + ... + 2486554.

It is an arithmetic number, because the mean of its divisors is an integer number (39784384).

Almost surely, 2^154164457 is an apocalyptic number.

It is an amenable number.

154164457 is a deficient number, since it is larger than the sum of its proper divisors (4973079).

154164457 is an equidigital number, since it uses as much as digits as its factorization.

154164457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4973078.

The product of its digits is 67200, while the sum is 37.

The square root of 154164457 is about 12416.2980392708. The cubic root of 154164457 is about 536.2015756738.

The spelling of 154164457 in words is "one hundred fifty-four million, one hundred sixty-four thousand, four hundred fifty-seven".