154291131 has 6 divisors (see below), whose sum is σ = 222864980. Its totient is φ = 102860748.

The previous prime is 154291129. The next prime is 154291171. The reversal of 154291131 is 131192451.

It is a happy number.

154291131 is a `hidden beast` number, since 1 + 542 + 9 + 113 + 1 = 666.

It is not a de Polignac number, because 154291131 - 2¹ = 154291129 is a prime.

It is a super-2 number, since 2×154291131² = 47611506210518322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154291095 and 154291104.

It is not an unprimeable number, because it can be changed into a prime (154291171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8571721 + ... + 8571738.

Almost surely, 2^154291131 is an apocalyptic number.

154291131 is a deficient number, since it is larger than the sum of its proper divisors (68573849).

154291131 is a wasteful number, since it uses less digits than its factorization.

154291131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17143465 (or 17143462 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 154291131 is about 12421.3981097137. The cubic root of 154291131 is about 536.3483976771.

The spelling of 154291131 in words is "one hundred fifty-four million, two hundred ninety-one thousand, one hundred thirty-one".