161093512 has 16 divisors (see below), whose sum is σ = 302547600. Its totient is φ = 80414160.

The previous prime is 161093509. The next prime is 161093519. The reversal of 161093512 is 215390161.

It is a super-2 number, since 2×161093512² = 51902239216988288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161093519) 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, 11314 + ... + 21217.

It is an arithmetic number, because the mean of its divisors is an integer number (18909225).

Almost surely, 2^161093512 is an apocalyptic number.

It is an amenable number.

161093512 is a deficient number, since it is larger than the sum of its proper divisors (141454088).

161093512 is a wasteful number, since it uses less digits than its factorization.

161093512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33156 (or 33152 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 161093512 is about 12692.2618945561. The cubic root of 161093512 is about 544.1174865193.

The spelling of 161093512 in words is "one hundred sixty-one million, ninety-three thousand, five hundred twelve".