715895145137 has 4 divisors (see below), whose sum is σ = 723275507556. Its totient is φ = 708514782720.

The previous prime is 715895145113. The next prime is 715895145139. The reversal of 715895145137 is 731541598517.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731541598517 = 83 ⋅8813754199.

It can be written as a sum of positive squares in 2 ways, for example, as 241517205136 + 474377940001 = 491444^2 + 688751^2 .

It is a cyclic number.

It is not a de Polignac number, because 715895145137 - 2¹⁸ = 715894882993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (715895145139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3690181064 + ... + 3690181257.

It is an arithmetic number, because the mean of its divisors is an integer number (180818876889).

Almost surely, 2^715895145137 is an apocalyptic number.

It is an amenable number.

715895145137 is a deficient number, since it is larger than the sum of its proper divisors (7380362419).

715895145137 is an equidigital number, since it uses as much as digits as its factorization.

715895145137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7380362418.

The product of its digits is 5292000, while the sum is 56.

The spelling of 715895145137 in words is "seven hundred fifteen billion, eight hundred ninety-five million, one hundred forty-five thousand, one hundred thirty-seven".