75136429 has 4 divisors (see below), whose sum is σ = 75188380. Its totient is φ = 75084480.

The previous prime is 75136427. The next prime is 75136433. The reversal of 75136429 is 92463157.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92463157 = 6211 ⋅14887.

It can be written as a sum of positive squares in 2 ways, for example, as 38775529 + 36360900 = 6227^2 + 6030^2 .

It is a cyclic number.

It is not a de Polignac number, because 75136429 - 2¹ = 75136427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75136427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23742 + ... + 26719.

It is an arithmetic number, because the mean of its divisors is an integer number (18797095).

Almost surely, 2^75136429 is an apocalyptic number.

It is an amenable number.

75136429 is a deficient number, since it is larger than the sum of its proper divisors (51951).

75136429 is a wasteful number, since it uses less digits than its factorization.

75136429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51950.

The product of its digits is 45360, while the sum is 37.

The square root of 75136429 is about 8668.1271910373. The cubic root of 75136429 is about 421.9718859253.

The spelling of 75136429 in words is "seventy-five million, one hundred thirty-six thousand, four hundred twenty-nine".