155461506 has 16 divisors (see below), whose sum is σ = 311346048. Its totient is φ = 51750000.

The previous prime is 155461487. The next prime is 155461511. The reversal of 155461506 is 605164551.

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, 12745 + ... + 21756.

It is an arithmetic number, because the mean of its divisors is an integer number (19459128).

Almost surely, 2^155461506 is an apocalyptic number.

155461506 is an abundant number, since it is smaller than the sum of its proper divisors (155884542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155461506 is a wasteful number, since it uses less digits than its factorization.

155461506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35257.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 155461506 is about 12468.4203490258. The cubic root of 155461506 is about 537.7011395044.

The spelling of 155461506 in words is "one hundred fifty-five million, four hundred sixty-one thousand, five hundred six".