74020123 has 2 divisors, whose sum is σ = 74020124. Its totient is φ = 74020122.

The previous prime is 74020117. The next prime is 74020153. The reversal of 74020123 is 32102047.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74020123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74020123.

It is not a weakly prime, because it can be changed into another prime (74020153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37010061 + 37010062.

It is an arithmetic number, because the mean of its divisors is an integer number (37010062).

Almost surely, 2^74020123 is an apocalyptic number.

74020123 is a deficient number, since it is larger than the sum of its proper divisors (1).

74020123 is an equidigital number, since it uses as much as digits as its factorization.

74020123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 74020123 is about 8603.4948131559. The cubic root of 74020123 is about 419.8716973933.

The spelling of 74020123 in words is "seventy-four million, twenty thousand, one hundred twenty-three".