73900161 has 8 divisors (see below), whose sum is σ = 109481760. Its totient is φ = 49266756.

The previous prime is 73900159. The next prime is 73900181. The reversal of 73900161 is 16100937.

It is not a de Polignac number, because 73900161 - 2¹ = 73900159 is a prime.

It is a super-2 number, since 2×73900161² = 10922467591651842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2737043 = 73900161 / (7 + 3 + 9 + 0 + 0 + 1 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (73900181) 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, 1368495 + ... + 1368548.

It is an arithmetic number, because the mean of its divisors is an integer number (13685220).

Almost surely, 2^73900161 is an apocalyptic number.

It is an amenable number.

73900161 is a deficient number, since it is larger than the sum of its proper divisors (35581599).

73900161 is a wasteful number, since it uses less digits than its factorization.

73900161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737052 (or 2737046 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 73900161 is about 8596.5202843941. The cubic root of 73900161 is about 419.6447506239.

The spelling of 73900161 in words is "seventy-three million, nine hundred thousand, one hundred sixty-one".