74501653 has 2 divisors, whose sum is σ = 74501654. Its totient is φ = 74501652.

The previous prime is 74501621. The next prime is 74501659. The reversal of 74501653 is 35610547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54493924 + 20007729 = 7382^2 + 4473^2 .

It is a cyclic number.

It is not a de Polignac number, because 74501653 - 2⁵ = 74501621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74501659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37250826 + 37250827.

It is an arithmetic number, because the mean of its divisors is an integer number (37250827).

Almost surely, 2^74501653 is an apocalyptic number.

It is an amenable number.

74501653 is a deficient number, since it is larger than the sum of its proper divisors (1).

74501653 is an equidigital number, since it uses as much as digits as its factorization.

74501653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 74501653 is about 8631.4340060039. The cubic root of 74501653 is about 420.7802069807.

The spelling of 74501653 in words is "seventy-four million, five hundred one thousand, six hundred fifty-three".