161370822 has 16 divisors (see below), whose sum is σ = 322882560. Its totient is φ = 53766792.

The previous prime is 161370791. The next prime is 161370823. The reversal of 161370822 is 228073161.

161370822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 161370822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161370823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14403 + ... + 23025.

It is an arithmetic number, because the mean of its divisors is an integer number (20180160).

Almost surely, 2^161370822 is an apocalyptic number.

161370822 is an abundant number, since it is smaller than the sum of its proper divisors (161511738).

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

161370822 is a wasteful number, since it uses less digits than its factorization.

161370822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11747.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 161370822 is about 12703.1815699847. The cubic root of 161370822 is about 544.4295262360.

The spelling of 161370822 in words is "one hundred sixty-one million, three hundred seventy thousand, eight hundred twenty-two".