1561014445 has 8 divisors (see below), whose sum is σ = 1971807840. Its totient is φ = 1183084560.

The previous prime is 1561014401. The next prime is 1561014457. The reversal of 1561014445 is 5444101651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1561014445 - 2⁷ = 1561014317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8215771 + ... + 8215960.

It is an arithmetic number, because the mean of its divisors is an integer number (246475980).

Almost surely, 2^1561014445 is an apocalyptic number.

It is an amenable number.

1561014445 is a deficient number, since it is larger than the sum of its proper divisors (410793395).

1561014445 is a wasteful number, since it uses less digits than its factorization.

1561014445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16431755.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 1561014445 is about 39509.6753340242. The cubic root of 1561014445 is about 1160.0293405678.

The spelling of 1561014445 in words is "one billion, five hundred sixty-one million, fourteen thousand, four hundred forty-five".