75136253 has 2 divisors, whose sum is σ = 75136254. Its totient is φ = 75136252.

The previous prime is 75136213. The next prime is 75136289. The reversal of 75136253 is 35263157.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45738169 + 29398084 = 6763^2 + 5422^2 .

It is a cyclic number.

It is not a de Polignac number, because 75136253 - 2¹² = 75132157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75136213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37568126 + 37568127.

It is an arithmetic number, because the mean of its divisors is an integer number (37568127).

Almost surely, 2^75136253 is an apocalyptic number.

It is an amenable number.

75136253 is a deficient number, since it is larger than the sum of its proper divisors (1).

75136253 is an equidigital number, since it uses as much as digits as its factorization.

75136253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 32.

The square root of 75136253 is about 8668.1170388960. The cubic root of 75136253 is about 421.9715564486.

The spelling of 75136253 in words is "seventy-five million, one hundred thirty-six thousand, two hundred fifty-three".