161377367 has 4 divisors (see below), whose sum is σ = 164810976. Its totient is φ = 157943760.

The previous prime is 161377343. The next prime is 161377397. The reversal of 161377367 is 763773161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161377367 - 2²² = 157183063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161377397) 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, 1716734 + ... + 1716827.

It is an arithmetic number, because the mean of its divisors is an integer number (41202744).

Almost surely, 2^161377367 is an apocalyptic number.

161377367 is a deficient number, since it is larger than the sum of its proper divisors (3433609).

161377367 is an equidigital number, since it uses as much as digits as its factorization.

161377367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433608.

The product of its digits is 111132, while the sum is 41.

The square root of 161377367 is about 12703.4391800016. The cubic root of 161377367 is about 544.4368865982.

The spelling of 161377367 in words is "one hundred sixty-one million, three hundred seventy-seven thousand, three hundred sixty-seven".