74152493 has 2 divisors, whose sum is σ = 74152494. Its totient is φ = 74152492.

The previous prime is 74152489. The next prime is 74152499. The reversal of 74152493 is 39425147.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55160329 + 18992164 = 7427^2 + 4358^2 .

It is a cyclic number.

It is not a de Polignac number, because 74152493 - 2² = 74152489 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74152499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37076246 + 37076247.

It is an arithmetic number, because the mean of its divisors is an integer number (37076247).

Almost surely, 2^74152493 is an apocalyptic number.

It is an amenable number.

74152493 is a deficient number, since it is larger than the sum of its proper divisors (1).

74152493 is an equidigital number, since it uses as much as digits as its factorization.

74152493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 74152493 is about 8611.1841810520. The cubic root of 74152493 is about 420.1218335138.

The spelling of 74152493 in words is "seventy-four million, one hundred fifty-two thousand, four hundred ninety-three".