161477313 has 4 divisors (see below), whose sum is σ = 215303088. Its totient is φ = 107651540.

The previous prime is 161477299. The next prime is 161477347. The reversal of 161477313 is 313774161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161477313 - 2⁴ = 161477297 is a prime.

It is a super-2 number, since 2×161477313² = 52149845227399938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161473313) 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, 26912883 + ... + 26912888.

It is an arithmetic number, because the mean of its divisors is an integer number (53825772).

Almost surely, 2^161477313 is an apocalyptic number.

It is an amenable number.

161477313 is a deficient number, since it is larger than the sum of its proper divisors (53825775).

161477313 is an equidigital number, since it uses as much as digits as its factorization.

161477313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53825774.

The product of its digits is 10584, while the sum is 33.

The square root of 161477313 is about 12707.3723877126. The cubic root of 161477313 is about 544.5492589431.

The spelling of 161477313 in words is "one hundred sixty-one million, four hundred seventy-seven thousand, three hundred thirteen".