151863394 has 16 divisors (see below), whose sum is σ = 230699448. Its totient is φ = 74967552.

The previous prime is 151863373. The next prime is 151863403. The reversal of 151863394 is 493368151.

It can be written as a sum of positive squares in 4 ways, for example, as 88454025 + 63409369 = 9405^2 + 7963^2 .

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, 118284 + ... + 119560.

Almost surely, 2^151863394 is an apocalyptic number.

151863394 is a deficient number, since it is larger than the sum of its proper divisors (78836054).

151863394 is a wasteful number, since it uses less digits than its factorization.

151863394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989.

The product of its digits is 77760, while the sum is 40.

The square root of 151863394 is about 12323.2866557587. The cubic root of 151863394 is about 533.5204047747.

The spelling of 151863394 in words is "one hundred fifty-one million, eight hundred sixty-three thousand, three hundred ninety-four".