161147370 has 32 divisors (see below), whose sum is σ = 388035648. Its totient is φ = 42830208.

The previous prime is 161147353. The next prime is 161147381. The reversal of 161147370 is 73741161.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon 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, 462 + ... + 17958.

It is an arithmetic number, because the mean of its divisors is an integer number (12126114).

Almost surely, 2^161147370 is an apocalyptic number.

161147370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161147370 is an abundant number, since it is smaller than the sum of its proper divisors (226888278).

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

161147370 is a wasteful number, since it uses less digits than its factorization.

161147370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17814.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 161147370 is about 12694.3834036947. The cubic root of 161147370 is about 544.1781175859.

The spelling of 161147370 in words is "one hundred sixty-one million, one hundred forty-seven thousand, three hundred seventy".