74345501 has 2 divisors, whose sum is σ = 74345502. Its totient is φ = 74345500.

The previous prime is 74345489. The next prime is 74345563. The reversal of 74345501 is 10554347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73444900 + 900601 = 8570^2 + 949^2 .

It is a cyclic number.

It is not a de Polignac number, because 74345501 - 2¹⁰ = 74344477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74345101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37172750 + 37172751.

It is an arithmetic number, because the mean of its divisors is an integer number (37172751).

Almost surely, 2^74345501 is an apocalyptic number.

It is an amenable number.

74345501 is a deficient number, since it is larger than the sum of its proper divisors (1).

74345501 is an equidigital number, since it uses as much as digits as its factorization.

74345501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 74345501 is about 8622.3837191347. The cubic root of 74345501 is about 420.4860227709.

Adding to 74345501 its reverse (10554347), we get a palindrome (84899848).

The spelling of 74345501 in words is "seventy-four million, three hundred forty-five thousand, five hundred one".