74722126 has 4 divisors (see below), whose sum is σ = 112083192. Its totient is φ = 37361062.

The previous prime is 74722111. The next prime is 74722169. The reversal of 74722126 is 62122747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62122747 = 23 ⋅2700989.

It is a super-2 number, since 2×74722126² = 11166792227919752, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18680530 + ... + 18680533.

It is an arithmetic number, because the mean of its divisors is an integer number (28020798).

Almost surely, 2^74722126 is an apocalyptic number.

74722126 is a deficient number, since it is larger than the sum of its proper divisors (37361066).

74722126 is a wasteful number, since it uses less digits than its factorization.

74722126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37361065.

The product of its digits is 9408, while the sum is 31.

The square root of 74722126 is about 8644.1960875491. The cubic root of 74722126 is about 421.1948703195.

The spelling of 74722126 in words is "seventy-four million, seven hundred twenty-two thousand, one hundred twenty-six".