161250936 has 64 divisors (see below), whose sum is σ = 502606080. Its totient is φ = 41882880.

The previous prime is 161250917. The next prime is 161250949. The reversal of 161250936 is 639052161.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 161250897 and 161250906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41781 + ... + 45476.

It is an arithmetic number, because the mean of its divisors is an integer number (7853220).

Almost surely, 2^161250936 is an apocalyptic number.

It is an amenable number.

161250936 is an abundant number, since it is smaller than the sum of its proper divisors (341355144).

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

161250936 is a wasteful number, since it uses less digits than its factorization.

161250936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87284 (or 87280 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 161250936 is about 12698.4619541108. The cubic root of 161250936 is about 544.2946698693.

The spelling of 161250936 in words is "one hundred sixty-one million, two hundred fifty thousand, nine hundred thirty-six".