154154457 has 6 divisors (see below), whose sum is σ = 222667562. Its totient is φ = 102769632.

The previous prime is 154154443. The next prime is 154154491. The reversal of 154154457 is 754451451.

154154457 is a `hidden beast` number, since 1 + 54 + 154 + 457 = 666.

It can be written as a sum of positive squares in only one way, i.e., 100220121 + 53934336 = 10011^2 + 7344^2 .

It is not a de Polignac number, because 154154457 - 2⁶ = 154154393 is a prime.

It is a super-2 number, since 2×154154457² = 47527193225929698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154154417) 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 5 ways as a sum of consecutive naturals, for example, 8564128 + ... + 8564145.

Almost surely, 2^154154457 is an apocalyptic number.

It is an amenable number.

154154457 is a deficient number, since it is larger than the sum of its proper divisors (68513105).

154154457 is a wasteful number, since it uses less digits than its factorization.

154154457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17128279 (or 17128276 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 154154457 is about 12415.8953362212. The cubic root of 154154457 is about 536.1899817094.

The spelling of 154154457 in words is "one hundred fifty-four million, one hundred fifty-four thousand, four hundred fifty-seven".