1561610432 has 14 divisors (see below), whose sum is σ = 3098820828. Its totient is φ = 780805184.

The previous prime is 1561610417. The next prime is 1561610447. The reversal of 1561610432 is 2340161651.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1561610417) and next prime (1561610447).

It is a junction number, because it is equal to n+sod(n) for n = 1561610395 and 1561610404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12200018 + ... + 12200145.

Almost surely, 2^1561610432 is an apocalyptic number.

It is an amenable number.

1561610432 is a deficient number, since it is larger than the sum of its proper divisors (1537210396).

1561610432 is an equidigital number, since it uses as much as digits as its factorization.

1561610432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24400175 (or 24400165 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1561610432 is about 39517.2169060525. The cubic root of 1561610432 is about 1160.1769527912.

The spelling of 1561610432 in words is "one billion, five hundred sixty-one million, six hundred ten thousand, four hundred thirty-two".