1051501313 has 4 divisors (see below), whose sum is σ = 1051748100. Its totient is φ = 1051254528.

The previous prime is 1051501303. The next prime is 1051501331. The reversal of 1051501313 is 3131051501.

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 85969984 + 965531329 = 9272^2 + 31073^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051501313 - 2¹² = 1051497217 is a prime.

It is a super-2 number, since 2×1051501313² = 2211310022481447938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051501303) 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, 116888 + ... + 125561.

It is an arithmetic number, because the mean of its divisors is an integer number (262937025).

Almost surely, 2^1051501313 is an apocalyptic number.

It is an amenable number.

1051501313 is a deficient number, since it is larger than the sum of its proper divisors (246787).

1051501313 is an equidigital number, since it uses as much as digits as its factorization.

1051501313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246786.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 1051501313 is about 32426.8609797495. The cubic root of 1051501313 is about 1016.8805480440.

Adding to 1051501313 its reverse (3131051501), we get a palindrome (4182552814).

The spelling of 1051501313 in words is "one billion, fifty-one million, five hundred one thousand, three hundred thirteen".