1072840313 has 4 divisors (see below), whose sum is σ = 1119485568. Its totient is φ = 1026195060.

The previous prime is 1072840253. The next prime is 1072840331. The reversal of 1072840313 is 3130482701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1072840313 - 2¹⁴ = 1072823929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1072840333) 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, 23322593 + ... + 23322638.

It is an arithmetic number, because the mean of its divisors is an integer number (279871392).

Almost surely, 2^1072840313 is an apocalyptic number.

It is an amenable number.

1072840313 is a deficient number, since it is larger than the sum of its proper divisors (46645255).

1072840313 is an equidigital number, since it uses as much as digits as its factorization.

1072840313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46645254.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1072840313 is about 32754.2411452319. The cubic root of 1072840313 is about 1023.7133371290.

The spelling of 1072840313 in words is "one billion, seventy-two million, eight hundred forty thousand, three hundred thirteen".