1313152235 has 4 divisors (see below), whose sum is σ = 1575782688. Its totient is φ = 1050521784.

The previous prime is 1313152201. The next prime is 1313152249. The reversal of 1313152235 is 5322513131.

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

It is a cyclic number.

It is not a de Polignac number, because 1313152235 - 2¹⁸ = 1312890091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131315219 + ... + 131315228.

It is an arithmetic number, because the mean of its divisors is an integer number (393945672).

Almost surely, 2^1313152235 is an apocalyptic number.

1313152235 is a deficient number, since it is larger than the sum of its proper divisors (262630453).

1313152235 is an equidigital number, since it uses as much as digits as its factorization.

1313152235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262630452.

The product of its digits is 2700, while the sum is 26.

The square root of 1313152235 is about 36237.4424456252. The cubic root of 1313152235 is about 1095.0611184723.

Adding to 1313152235 its reverse (5322513131), we get a palindrome (6635665366).

The spelling of 1313152235 in words is "one billion, three hundred thirteen million, one hundred fifty-two thousand, two hundred thirty-five".