73161457 has 8 divisors (see below), whose sum is σ = 79496960. Its totient is φ = 67074480.

The previous prime is 73161449. The next prime is 73161481. The reversal of 73161457 is 75416137.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73161457 - 2³ = 73161449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73161427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61518 + ... + 62695.

It is an arithmetic number, because the mean of its divisors is an integer number (9937120).

Almost surely, 2^73161457 is an apocalyptic number.

It is an amenable number.

73161457 is a deficient number, since it is larger than the sum of its proper divisors (6335503).

73161457 is a wasteful number, since it uses less digits than its factorization.

73161457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124263.

The product of its digits is 17640, while the sum is 34.

The square root of 73161457 is about 8553.4470829017. The cubic root of 73161457 is about 418.2418131071.

The spelling of 73161457 in words is "seventy-three million, one hundred sixty-one thousand, four hundred fifty-seven".