1235456313 has 32 divisors (see below), whose sum is σ = 2029440000. Its totient is φ = 651018816.

The previous prime is 1235456251. The next prime is 1235456329. The reversal of 1235456313 is 3136545321.

It is not a de Polignac number, because 1235456313 - 2⁹ = 1235455801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1235456713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 407718 + ... + 410736.

It is an arithmetic number, because the mean of its divisors is an integer number (63420000).

Almost surely, 2^1235456313 is an apocalyptic number.

1235456313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1235456313 is a deficient number, since it is larger than the sum of its proper divisors (793983687).

1235456313 is a wasteful number, since it uses less digits than its factorization.

1235456313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541.

The product of its digits is 32400, while the sum is 33.

The square root of 1235456313 is about 35149.0584937918. The cubic root of 1235456313 is about 1073.0232468334.

The spelling of 1235456313 in words is "one billion, two hundred thirty-five million, four hundred fifty-six thousand, three hundred thirteen".