1431399361 has 8 divisors (see below), whose sum is σ = 1644362624. Its totient is φ = 1220555520.

The previous prime is 1431399317. The next prime is 1431399407. The reversal of 1431399361 is 1639931341.

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 1431399361 - 2²¹ = 1429302209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431399161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528405 + ... + 531106.

It is an arithmetic number, because the mean of its divisors is an integer number (205545328).

Almost surely, 2^1431399361 is an apocalyptic number.

It is an amenable number.

1431399361 is a deficient number, since it is larger than the sum of its proper divisors (212963263).

1431399361 is a wasteful number, since it uses less digits than its factorization.

1431399361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059711.

The product of its digits is 52488, while the sum is 40.

The square root of 1431399361 is about 37833.8388350958. The cubic root of 1431399361 is about 1126.9905462878.

The spelling of 1431399361 in words is "one billion, four hundred thirty-one million, three hundred ninety-nine thousand, three hundred sixty-one".