1431614561 has 16 divisors (see below), whose sum is σ = 1560787200. Its totient is φ = 1305220608.

The previous prime is 1431614543. The next prime is 1431614567. The reversal of 1431614561 is 1654161341.

It is a cyclic number.

It is not a de Polignac number, because 1431614561 - 2⁶ = 1431614497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431614567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905870 + ... + 907448.

It is an arithmetic number, because the mean of its divisors is an integer number (97549200).

Almost surely, 2^1431614561 is an apocalyptic number.

It is an amenable number.

1431614561 is a deficient number, since it is larger than the sum of its proper divisors (129172639).

1431614561 is a wasteful number, since it uses less digits than its factorization.

1431614561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408.

The product of its digits is 8640, while the sum is 32.

The square root of 1431614561 is about 37836.6827430736. The cubic root of 1431614561 is about 1127.0470216081.

The spelling of 1431614561 in words is "one billion, four hundred thirty-one million, six hundred fourteen thousand, five hundred sixty-one".