161255102 has 16 divisors (see below), whose sum is σ = 251831472. Its totient is φ = 77371200.

The previous prime is 161255089. The next prime is 161255119. The reversal of 161255102 is 201552161.

It is a happy number.

161255102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 9524 + ... + 20327.

It is an arithmetic number, because the mean of its divisors is an integer number (15739467).

Almost surely, 2^161255102 is an apocalyptic number.

161255102 is a deficient number, since it is larger than the sum of its proper divisors (90576370).

161255102 is a wasteful number, since it uses less digits than its factorization.

161255102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29963.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 161255102 is about 12698.6259886651. The cubic root of 161255102 is about 544.2993572055.

The spelling of 161255102 in words is "one hundred sixty-one million, two hundred fifty-five thousand, one hundred two".