74149051 has 4 divisors (see below), whose sum is σ = 74206504. Its totient is φ = 74091600.

The previous prime is 74149037. The next prime is 74149091. The reversal of 74149051 is 15094147.

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

It is a cyclic number.

It is not a de Polignac number, because 74149051 - 2⁷ = 74148923 is a prime.

It is a super-3 number, since 3×74149051³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74149021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26745 + ... + 29386.

It is an arithmetic number, because the mean of its divisors is an integer number (18551626).

Almost surely, 2^74149051 is an apocalyptic number.

74149051 is a deficient number, since it is larger than the sum of its proper divisors (57453).

74149051 is a wasteful number, since it uses less digits than its factorization.

74149051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57452.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 74149051 is about 8610.9843223641. The cubic root of 74149051 is about 420.1153330278.

The spelling of 74149051 in words is "seventy-four million, one hundred forty-nine thousand, fifty-one".