74002201531 has 2 divisors, whose sum is σ = 74002201532. Its totient is φ = 74002201530.

The previous prime is 74002201523. The next prime is 74002201541. The reversal of 74002201531 is 13510220047.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74002201531 - 2³ = 74002201523 is a prime.

It is a super-2 number, since 2×74002201531² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74002201496 and 74002201505.

It is not a weakly prime, because it can be changed into another prime (74002201501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37001100765 + 37001100766.

It is an arithmetic number, because the mean of its divisors is an integer number (37001100766).

Almost surely, 2^74002201531 is an apocalyptic number.

74002201531 is a deficient number, since it is larger than the sum of its proper divisors (1).

74002201531 is an equidigital number, since it uses as much as digits as its factorization.

74002201531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

Adding to 74002201531 its reverse (13510220047), we get a palindrome (87512421578).

The spelling of 74002201531 in words is "seventy-four billion, two million, two hundred one thousand, five hundred thirty-one".