155256146 has 8 divisors (see below), whose sum is σ = 232950144. Its totient is φ = 77606100.

The previous prime is 155256137. The next prime is 155256149. The reversal of 155256146 is 641652551.

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

It is not an unprimeable number, because it can be changed into a prime (155256149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71 + ... + 17621.

It is an arithmetic number, because the mean of its divisors is an integer number (29118768).

Almost surely, 2^155256146 is an apocalyptic number.

155256146 is a deficient number, since it is larger than the sum of its proper divisors (77693998).

155256146 is a wasteful number, since it uses less digits than its factorization.

155256146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21976.

The product of its digits is 36000, while the sum is 35.

The square root of 155256146 is about 12460.1824224206. The cubic root of 155256146 is about 537.4642728011.

The spelling of 155256146 in words is "one hundred fifty-five million, two hundred fifty-six thousand, one hundred forty-six".