75501149 has 2 divisors, whose sum is σ = 75501150. Its totient is φ = 75501148.

The previous prime is 75501137. The next prime is 75501191. The reversal of 75501149 is 94110557.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41512249 + 33988900 = 6443^2 + 5830^2 .

It is a cyclic number.

It is not a de Polignac number, because 75501149 - 2⁴ = 75501133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75501109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37750574 + 37750575.

It is an arithmetic number, because the mean of its divisors is an integer number (37750575).

Almost surely, 2^75501149 is an apocalyptic number.

It is an amenable number.

75501149 is a deficient number, since it is larger than the sum of its proper divisors (1).

75501149 is an equidigital number, since it uses as much as digits as its factorization.

75501149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 75501149 is about 8689.1397157601. The cubic root of 75501149 is about 422.6535492213.

The spelling of 75501149 in words is "seventy-five million, five hundred one thousand, one hundred forty-nine".