7531214137 has 2 divisors, whose sum is σ = 7531214138. Its totient is φ = 7531214136.

The previous prime is 7531214113. The next prime is 7531214143. The reversal of 7531214137 is 7314121357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7301873401 + 229340736 = 85451^2 + 15144^2 .

It is an emirp because it is prime and its reverse (7314121357) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7531214137 - 2¹¹ = 7531212089 is a prime.

It is not a weakly prime, because it can be changed into another prime (7531214837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3765607068 + 3765607069.

It is an arithmetic number, because the mean of its divisors is an integer number (3765607069).

Almost surely, 2^7531214137 is an apocalyptic number.

It is an amenable number.

7531214137 is a deficient number, since it is larger than the sum of its proper divisors (1).

7531214137 is an equidigital number, since it uses as much as digits as its factorization.

7531214137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 34.

The square root of 7531214137 is about 86782.5681631974. The cubic root of 7531214137 is about 1960.1456001271.

The spelling of 7531214137 in words is "seven billion, five hundred thirty-one million, two hundred fourteen thousand, one hundred thirty-seven".