155901146 has 8 divisors (see below), whose sum is σ = 233905044. Its totient is φ = 77932800.

The previous prime is 155901133. The next prime is 155901167. The reversal of 155901146 is 641109551.

It can be written as a sum of positive squares in 2 ways, for example, as 155875225 + 25921 = 12485^2 + 161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×155901146² = 48610334648226632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10796 + ... + 20696.

Almost surely, 2^155901146 is an apocalyptic number.

155901146 is a deficient number, since it is larger than the sum of its proper divisors (78003898).

155901146 is an equidigital number, since it uses as much as digits as its factorization.

155901146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17776.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 155901146 is about 12486.0380425498. The cubic root of 155901146 is about 538.2075294686.

The spelling of 155901146 in words is "one hundred fifty-five million, nine hundred one thousand, one hundred forty-six".