1399153045 has 8 divisors (see below), whose sum is σ = 1680375096. Its totient is φ = 1118394816.

The previous prime is 1399153033. The next prime is 1399153073. The reversal of 1399153045 is 5403519931.

It can be written as a sum of positive squares in 4 ways, for example, as 143017681 + 1256135364 = 11959^2 + 35442^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1399153045 - 2⁵ = 1399153013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1399152989 and 1399153007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109282 + ... + 121411.

It is an arithmetic number, because the mean of its divisors is an integer number (210046887).

Almost surely, 2^1399153045 is an apocalyptic number.

It is an amenable number.

1399153045 is a deficient number, since it is larger than the sum of its proper divisors (281222051).

1399153045 is a wasteful number, since it uses less digits than its factorization.

1399153045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231911.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 1399153045 is about 37405.2542432210. The cubic root of 1399153045 is about 1118.4633062904.

The spelling of 1399153045 in words is "one billion, three hundred ninety-nine million, one hundred fifty-three thousand, forty-five".