1409234561 has 12 divisors (see below), whose sum is σ = 1646362692. Its totient is φ = 1202721408.

The previous prime is 1409234557. The next prime is 1409234591. The reversal of 1409234561 is 1654329041.

It can be written as a sum of positive squares in 2 ways, for example, as 577488961 + 831745600 = 24031^2 + 28840^2 .

It is not a de Polignac number, because 1409234561 - 2² = 1409234557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1409234501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50300 + ... + 73133.

It is an arithmetic number, because the mean of its divisors is an integer number (137196891).

Almost surely, 2^1409234561 is an apocalyptic number.

It is an amenable number.

1409234561 is a deficient number, since it is larger than the sum of its proper divisors (237128131).

1409234561 is a wasteful number, since it uses less digits than its factorization.

1409234561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123680 (or 123673 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1409234561 is about 37539.7730547216. The cubic root of 1409234561 is about 1121.1432207010.

The spelling of 1409234561 in words is "one billion, four hundred nine million, two hundred thirty-four thousand, five hundred sixty-one".