381253154 has 16 divisors (see below), whose sum is σ = 576876600. Its totient is φ = 188966400.

The previous prime is 381253141. The next prime is 381253163. The reversal of 381253154 is 451352183.

It can be written as a sum of positive squares in 4 ways, for example, as 130759225 + 250493929 = 11435^2 + 15827^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 381253154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199604 + ... + 201504.

Almost surely, 2^381253154 is an apocalyptic number.

381253154 is a deficient number, since it is larger than the sum of its proper divisors (195623446).

381253154 is a wasteful number, since it uses less digits than its factorization.

381253154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725.

The product of its digits is 14400, while the sum is 32.

The square root of 381253154 is about 19525.7049552635. The cubic root of 381253154 is about 725.1109803947.

The spelling of 381253154 in words is "three hundred eighty-one million, two hundred fifty-three thousand, one hundred fifty-four".