7137240637 has 2 divisors, whose sum is σ = 7137240638. Its totient is φ = 7137240636.

The previous prime is 7137240629. The next prime is 7137240641. The reversal of 7137240637 is 7360427317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5974362436 + 1162878201 = 77294^2 + 34101^2 .

It is a cyclic number.

It is not a de Polignac number, because 7137240637 - 2³ = 7137240629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7137240637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7137240647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3568620318 + 3568620319.

It is an arithmetic number, because the mean of its divisors is an integer number (3568620319).

Almost surely, 2^7137240637 is an apocalyptic number.

It is an amenable number.

7137240637 is a deficient number, since it is larger than the sum of its proper divisors (1).

7137240637 is an equidigital number, since it uses as much as digits as its factorization.

7137240637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 7137240637 is about 84482.1912417049. The cubic root of 7137240637 is about 1925.3518791838.

The spelling of 7137240637 in words is "seven billion, one hundred thirty-seven million, two hundred forty thousand, six hundred thirty-seven".