1246045879 has 4 divisors (see below), whose sum is σ = 1341895576. Its totient is φ = 1150196184.

The previous prime is 1246045831. The next prime is 1246045919. The reversal of 1246045879 is 9785406421.

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 1246045879 - 2¹⁹ = 1245521591 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 (1246045679) 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, 47924829 + ... + 47924854.

It is an arithmetic number, because the mean of its divisors is an integer number (335473894).

Almost surely, 2^1246045879 is an apocalyptic number.

1246045879 is a deficient number, since it is larger than the sum of its proper divisors (95849697).

1246045879 is an equidigital number, since it uses as much as digits as its factorization.

1246045879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95849696.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 1246045879 is about 35299.3750511252. The cubic root of 1246045879 is about 1076.0802925001.

The spelling of 1246045879 in words is "one billion, two hundred forty-six million, forty-five thousand, eight hundred seventy-nine".