1301513957 has 4 divisors (see below), whose sum is σ = 1310249100. Its totient is φ = 1292778816.

The previous prime is 1301513923. The next prime is 1301513959. The reversal of 1301513957 is 7593151031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 238362721 + 1063151236 = 15439^2 + 32606^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301513957 - 2⁸ = 1301513701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301513959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4367348 + ... + 4367645.

It is an arithmetic number, because the mean of its divisors is an integer number (327562275).

Almost surely, 2^1301513957 is an apocalyptic number.

It is an amenable number.

1301513957 is a deficient number, since it is larger than the sum of its proper divisors (8735143).

1301513957 is an equidigital number, since it uses as much as digits as its factorization.

1301513957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8735142.

The product of its (nonzero) digits is 14175, while the sum is 35.

The square root of 1301513957 is about 36076.5014517761. The cubic root of 1301513957 is about 1091.8163909811.

Adding to 1301513957 its reverse (7593151031), we get a palindrome (8894664988).

The spelling of 1301513957 in words is "one billion, three hundred one million, five hundred thirteen thousand, nine hundred fifty-seven".