2251500137 has 2 divisors, whose sum is σ = 2251500138. Its totient is φ = 2251500136.

The previous prime is 2251500103. The next prime is 2251500143. The reversal of 2251500137 is 7310051522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1255214041 + 996286096 = 35429^2 + 31564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2251500137 - 2⁸ = 2251499881 is a prime.

It is a super-2 number, since 2×2251500137² = 10138505733822037538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2251500197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125750068 + 1125750069.

It is an arithmetic number, because the mean of its divisors is an integer number (1125750069).

Almost surely, 2^2251500137 is an apocalyptic number.

It is an amenable number.

2251500137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251500137 is an equidigital number, since it uses as much as digits as its factorization.

2251500137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 2251500137 is about 47449.9751000988. The cubic root of 2251500137 is about 1310.6618524908.

Adding to 2251500137 its reverse (7310051522), we get a palindrome (9561551659).

The spelling of 2251500137 in words is "two billion, two hundred fifty-one million, five hundred thousand, one hundred thirty-seven".