74253031 has 2 divisors, whose sum is σ = 74253032. Its totient is φ = 74253030.

The previous prime is 74253019. The next prime is 74253037. The reversal of 74253031 is 13035247.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74253031 - 2⁵ = 74252999 is a prime.

It is a super-2 number, since 2×74253031² = 11027025225373922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74252987 and 74253005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74253037) by changing a digit.

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, 37126515 + 37126516.

It is an arithmetic number, because the mean of its divisors is an integer number (37126516).

Almost surely, 2^74253031 is an apocalyptic number.

74253031 is a deficient number, since it is larger than the sum of its proper divisors (1).

74253031 is an equidigital number, since it uses as much as digits as its factorization.

74253031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 74253031 is about 8617.0198444706. The cubic root of 74253031 is about 420.3116186998.

Adding to 74253031 its reverse (13035247), we get a palindrome (87288278).

The spelling of 74253031 in words is "seventy-four million, two hundred fifty-three thousand, thirty-one".