154961451 has 16 divisors (see below), whose sum is σ = 229774720. Its totient is φ = 103216680.

The previous prime is 154961449. The next prime is 154961479. The reversal of 154961451 is 154169451.

154961451 is a `hidden beast` number, since 1 + 549 + 61 + 4 + 51 = 666.

It is not a de Polignac number, because 154961451 - 2¹ = 154961449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154961431) 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 15 ways as a sum of consecutive naturals, for example, 44856 + ... + 48186.

It is an arithmetic number, because the mean of its divisors is an integer number (14360920).

Almost surely, 2^154961451 is an apocalyptic number.

154961451 is a deficient number, since it is larger than the sum of its proper divisors (74813269).

154961451 is a wasteful number, since it uses less digits than its factorization.

154961451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063 (or 5057 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 154961451 is about 12448.3513366229. The cubic root of 154961451 is about 537.1239999530.

The spelling of 154961451 in words is "one hundred fifty-four million, nine hundred sixty-one thousand, four hundred fifty-one".