75285137 has 2 divisors, whose sum is σ = 75285138. Its totient is φ = 75285136.

The previous prime is 75285113. The next prime is 75285151. The reversal of 75285137 is 73158257.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74926336 + 358801 = 8656^2 + 599^2 .

It is a cyclic number.

It is not a de Polignac number, because 75285137 - 2¹⁰ = 75284113 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75285137.

It is not a weakly prime, because it can be changed into another prime (75285167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37642568 + 37642569.

It is an arithmetic number, because the mean of its divisors is an integer number (37642569).

Almost surely, 2^75285137 is an apocalyptic number.

It is an amenable number.

75285137 is a deficient number, since it is larger than the sum of its proper divisors (1).

75285137 is an equidigital number, since it uses as much as digits as its factorization.

75285137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58800, while the sum is 38.

The square root of 75285137 is about 8676.7008130971. The cubic root of 75285137 is about 422.2500876064.

The spelling of 75285137 in words is "seventy-five million, two hundred eighty-five thousand, one hundred thirty-seven".