7551126137 has 2 divisors, whose sum is σ = 7551126138. Its totient is φ = 7551126136.

The previous prime is 7551126097. The next prime is 7551126157. The reversal of 7551126137 is 7316211557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7440960121 + 110166016 = 86261^2 + 10496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7551126137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7551126137.

It is not a weakly prime, because it can be changed into another prime (7551126157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3775563068 + 3775563069.

It is an arithmetic number, because the mean of its divisors is an integer number (3775563069).

Almost surely, 2^7551126137 is an apocalyptic number.

It is an amenable number.

7551126137 is a deficient number, since it is larger than the sum of its proper divisors (1).

7551126137 is an equidigital number, since it uses as much as digits as its factorization.

7551126137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 38.

The square root of 7551126137 is about 86897.2159335384. The cubic root of 7551126137 is about 1961.8715755596.

The spelling of 7551126137 in words is "seven billion, five hundred fifty-one million, one hundred twenty-six thousand, one hundred thirty-seven".