161370736 has 20 divisors (see below), whose sum is σ = 313108432. Its totient is φ = 80568576.

The previous prime is 161370721. The next prime is 161370739. The reversal of 161370736 is 637073161.

It is a happy number.

161370736 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161370739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4696 + ... + 18568.

Almost surely, 2^161370736 is an apocalyptic number.

161370736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161370736 is a deficient number, since it is larger than the sum of its proper divisors (151737696).

161370736 is a wasteful number, since it uses less digits than its factorization.

161370736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14608 (or 14602 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 161370736 is about 12703.1781850055. The cubic root of 161370736 is about 544.4294295210.

The spelling of 161370736 in words is "one hundred sixty-one million, three hundred seventy thousand, seven hundred thirty-six".