73474155 has 32 divisors (see below), whose sum is σ = 131443200. Its totient is φ = 38939616.

The previous prime is 73474151. The next prime is 73474241. The reversal of 73474155 is 55147437.

It is a happy number.

It is not a de Polignac number, because 73474155 - 2² = 73474151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73474151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20916 + ... + 24174.

It is an arithmetic number, because the mean of its divisors is an integer number (4107600).

Almost surely, 2^73474155 is an apocalyptic number.

73474155 is a deficient number, since it is larger than the sum of its proper divisors (57969045).

73474155 is a wasteful number, since it uses less digits than its factorization.

73474155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440 (or 3434 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 73474155 is about 8571.7066562033. The cubic root of 73474155 is about 418.8368326650.

The spelling of 73474155 in words is "seventy-three million, four hundred seventy-four thousand, one hundred fifty-five".