161150536 has 8 divisors (see below), whose sum is σ = 302157270. Its totient is φ = 80575264.

The previous prime is 161150513. The next prime is 161150537. The reversal of 161150536 is 635051161.

161150536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 139004100 + 22146436 = 11790^2 + 4706^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (161150537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10071901 + ... + 10071916.

Almost surely, 2^161150536 is an apocalyptic number.

161150536 is the 6786-th centered heptagonal number.

It is an amenable number.

161150536 is a deficient number, since it is larger than the sum of its proper divisors (141006734).

161150536 is a wasteful number, since it uses less digits than its factorization.

161150536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20143823 (or 20143819 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 161150536 is about 12694.5081039007. The cubic root of 161150536 is about 544.1816813149.

The spelling of 161150536 in words is "one hundred sixty-one million, one hundred fifty thousand, five hundred thirty-six".