74530154 has 4 divisors (see below), whose sum is σ = 111795234. Its totient is φ = 37265076.

The previous prime is 74530147. The next prime is 74530163. The reversal of 74530154 is 45103547.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72505225 + 2024929 = 8515^2 + 1423^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18632537 + ... + 18632540.

Almost surely, 2^74530154 is an apocalyptic number.

74530154 is a deficient number, since it is larger than the sum of its proper divisors (37265080).

74530154 is a wasteful number, since it uses less digits than its factorization.

74530154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37265079.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 74530154 is about 8633.0848484189. The cubic root of 74530154 is about 420.8338573685.

The spelling of 74530154 in words is "seventy-four million, five hundred thirty thousand, one hundred fifty-four".