74121946 has 4 divisors (see below), whose sum is σ = 111182922. Its totient is φ = 37060972.

The previous prime is 74121919. The next prime is 74121953. The reversal of 74121946 is 64912147.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64912147 = 641 ⋅101267.

It can be written as a sum of positive squares in only one way, i.e., 41460721 + 32661225 = 6439^2 + 5715^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18530485 + ... + 18530488.

Almost surely, 2^74121946 is an apocalyptic number.

74121946 is a deficient number, since it is larger than the sum of its proper divisors (37060976).

74121946 is a wasteful number, since it uses less digits than its factorization.

74121946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37060975.

The product of its digits is 12096, while the sum is 34.

The square root of 74121946 is about 8609.4103166245. The cubic root of 74121946 is about 420.0641360862.

The spelling of 74121946 in words is "seventy-four million, one hundred twenty-one thousand, nine hundred forty-six".