161467957 has 4 divisors (see below), whose sum is σ = 184534816. Its totient is φ = 138401100.

The previous prime is 161467949. The next prime is 161467973. The reversal of 161467957 is 759764161.

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, and also an emirpimes, since its reverse is a distinct semiprime: 759764161 = 13 ⋅58443397.

It is a cyclic number.

It is not a de Polignac number, because 161467957 - 2³ = 161467949 is a prime.

It is a super-2 number, since 2×161467957² = 52143802275507698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161467907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11533419 + ... + 11533432.

It is an arithmetic number, because the mean of its divisors is an integer number (46133704).

Almost surely, 2^161467957 is an apocalyptic number.

It is an amenable number.

161467957 is a deficient number, since it is larger than the sum of its proper divisors (23066859).

161467957 is an equidigital number, since it uses as much as digits as its factorization.

161467957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23066858.

The product of its digits is 317520, while the sum is 46.

The square root of 161467957 is about 12707.0042496255. The cubic root of 161467957 is about 544.5387416736.

The spelling of 161467957 in words is "one hundred sixty-one million, four hundred sixty-seven thousand, nine hundred fifty-seven".