75480137 has 2 divisors, whose sum is σ = 75480138. Its totient is φ = 75480136.

The previous prime is 75480131. The next prime is 75480149. The reversal of 75480137 is 73108457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64384576 + 11095561 = 8024^2 + 3331^2 .

It is a cyclic number.

It is not a de Polignac number, because 75480137 - 2⁴ = 75480121 is a prime.

It is a super-3 number, since 3×75480137³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75480097 and 75480106.

It is not a weakly prime, because it can be changed into another prime (75480131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37740068 + 37740069.

It is an arithmetic number, because the mean of its divisors is an integer number (37740069).

Almost surely, 2^75480137 is an apocalyptic number.

It is an amenable number.

75480137 is a deficient number, since it is larger than the sum of its proper divisors (1).

75480137 is an equidigital number, since it uses as much as digits as its factorization.

75480137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 75480137 is about 8687.9305360943. The cubic root of 75480137 is about 422.6143373662.

The spelling of 75480137 in words is "seventy-five million, four hundred eighty thousand, one hundred thirty-seven".