75134493 has 80 divisors (see below), whose sum is σ = 138929600. Its totient is φ = 40007520.

The previous prime is 75134489. The next prime is 75134497. The reversal of 75134493 is 39443157.

It is an interprime number because it is at equal distance from previous prime (75134489) and next prime (75134497).

It is not a de Polignac number, because 75134493 - 2² = 75134489 is a prime.

It is a Duffinian number.

Its product of digits (45360) is a multiple of the sum of its prime divisors (90).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75134497) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1231683 + ... + 1231743.

It is an arithmetic number, because the mean of its divisors is an integer number (1736620).

Almost surely, 2^75134493 is an apocalyptic number.

It is an amenable number.

75134493 is a deficient number, since it is larger than the sum of its proper divisors (63795107).

75134493 is an equidigital number, since it uses as much as digits as its factorization.

75134493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 90 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 75134493 is about 8668.0155168297. The cubic root of 75134493 is about 421.9682616532.

The spelling of 75134493 in words is "seventy-five million, one hundred thirty-four thousand, four hundred ninety-three".