1399046045 has 4 divisors (see below), whose sum is σ = 1678855260. Its totient is φ = 1119236832.

The previous prime is 1399046029. The next prime is 1399046081. The reversal of 1399046045 is 5406409931.

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 787868761 + 611177284 = 28069^2 + 24722^2 .

It is a cyclic number.

It is not a de Polignac number, because 1399046045 - 2⁴ = 1399046029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1399045993 and 1399046011.

It is a congruent 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, 139904600 + ... + 139904609.

It is an arithmetic number, because the mean of its divisors is an integer number (419713815).

Almost surely, 2^1399046045 is an apocalyptic number.

It is an amenable number.

1399046045 is a deficient number, since it is larger than the sum of its proper divisors (279809215).

1399046045 is an equidigital number, since it uses as much as digits as its factorization.

1399046045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279809214.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 1399046045 is about 37403.8239355283. The cubic root of 1399046045 is about 1118.4347941309.

The spelling of 1399046045 in words is "one billion, three hundred ninety-nine million, forty-six thousand, forty-five".