74485161 has 12 divisors (see below), whose sum is σ = 108596592. Its totient is φ = 49192056.

The previous prime is 74485141. The next prime is 74485183. The reversal of 74485161 is 16158447.

It is a happy number.

It is not a de Polignac number, because 74485161 - 2⁶ = 74485097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74485121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37711 + ... + 39636.

It is an arithmetic number, because the mean of its divisors is an integer number (9049716).

Almost surely, 2^74485161 is an apocalyptic number.

It is an amenable number.

74485161 is a deficient number, since it is larger than the sum of its proper divisors (34111431).

74485161 is a wasteful number, since it uses less digits than its factorization.

74485161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77460 (or 77457 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 74485161 is about 8630.4786078178. The cubic root of 74485161 is about 420.7491561292.

It can be divided in two parts, 744 and 85161, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 74485161 in words is "seventy-four million, four hundred eighty-five thousand, one hundred sixty-one".