1561496 has 16 divisors (see below), whose sum is σ = 3082200. Its totient is φ = 739584.

The previous prime is 1561463. The next prime is 1561499. The reversal of 1561496 is 6941651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1561499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4985 + ... + 5288.

2^1561496 is an apocalyptic number.

It is an amenable number.

1561496 is a deficient number, since it is larger than the sum of its proper divisors (1520704).

1561496 is a wasteful number, since it uses less digits than its factorization.

1561496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10298 (or 10294 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 1561496 is about 1249.5983354662. The cubic root of 1561496 is about 116.0148613540.

The spelling of 1561496 in words is "one million, five hundred sixty-one thousand, four hundred ninety-six".