74919253 has 2 divisors, whose sum is σ = 74919254. Its totient is φ = 74919252.

The previous prime is 74919241. The next prime is 74919277. The reversal of 74919253 is 35291947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52099524 + 22819729 = 7218^2 + 4777^2 .

It is an emirp because it is prime and its reverse (35291947) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74919253 is a prime.

It is a super-2 number, since 2×74919253² = 11225788940156018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74919283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37459626 + 37459627.

It is an arithmetic number, because the mean of its divisors is an integer number (37459627).

Almost surely, 2^74919253 is an apocalyptic number.

It is an amenable number.

74919253 is a deficient number, since it is larger than the sum of its proper divisors (1).

74919253 is an equidigital number, since it uses as much as digits as its factorization.

74919253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 74919253 is about 8655.5908521602. The cubic root of 74919253 is about 421.5649346216.

It can be divided in two parts, 749 and 19253, that added together give a palindrome (20002).

The spelling of 74919253 in words is "seventy-four million, nine hundred nineteen thousand, two hundred fifty-three".