1561014453 has 8 divisors (see below), whose sum is σ = 2090442400. Its totient is φ = 1036131408.

The previous prime is 1561014401. The next prime is 1561014457. The reversal of 1561014453 is 3544101651.

It is a happy number.

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

It is not a de Polignac number, because 1561014453 - 2¹⁸ = 1560752309 is a prime.

It is a super-2 number, since 2×1561014453² = 4873532244949778418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1561014453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1561014457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135423 + ... + 1136796.

It is an arithmetic number, because the mean of its divisors is an integer number (261305300).

Almost surely, 2^1561014453 is an apocalyptic number.

It is an amenable number.

1561014453 is a deficient number, since it is larger than the sum of its proper divisors (529427947).

1561014453 is a wasteful number, since it uses less digits than its factorization.

1561014453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272451.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1561014453 is about 39509.6754352652. The cubic root of 1561014453 is about 1160.0293425495.

The spelling of 1561014453 in words is "one billion, five hundred sixty-one million, fourteen thousand, four hundred fifty-three".