161248950 has 36 divisors (see below), whose sum is σ = 433223388. Its totient is φ = 42999600.

The previous prime is 161248939. The next prime is 161248951. The reversal of 161248950 is 59842161.

It is a super-2 number, since 2×161248950² = 52002447752205000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161248951) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 178716 + ... + 179615.

It is an arithmetic number, because the mean of its divisors is an integer number (12033983).

Almost surely, 2^161248950 is an apocalyptic number.

161248950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161248950 is an abundant number, since it is smaller than the sum of its proper divisors (271974438).

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

161248950 is a wasteful number, since it uses less digits than its factorization.

161248950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358349 (or 358341 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 161248950 is about 12698.3837554234. The cubic root of 161248950 is about 544.2924353114.

The spelling of 161248950 in words is "one hundred sixty-one million, two hundred forty-eight thousand, nine hundred fifty".