1310687501 has 2 divisors, whose sum is σ = 1310687502. Its totient is φ = 1310687500.

The previous prime is 1310687489. The next prime is 1310687503. The reversal of 1310687501 is 1057860131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 767844100 + 542843401 = 27710^2 + 23299^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310687501 - 2¹⁰ = 1310686477 is a prime.

Together with 1310687503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310687503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655343750 + 655343751.

It is an arithmetic number, because the mean of its divisors is an integer number (655343751).

Almost surely, 2^1310687501 is an apocalyptic number.

It is an amenable number.

1310687501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310687501 is an equidigital number, since it uses as much as digits as its factorization.

1310687501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1310687501 is about 36203.4183607018. The cubic root of 1310687501 is about 1094.3755607937.

The spelling of 1310687501 in words is "one billion, three hundred ten million, six hundred eighty-seven thousand, five hundred one".