1053890661 has 16 divisors (see below), whose sum is σ = 1421259840. Its totient is φ = 694579200.

The previous prime is 1053890657. The next prime is 1053890671. The reversal of 1053890661 is 1660983501.

1053890661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1053890661 - 2² = 1053890657 is a prime.

It is a super-2 number, since 2×1053890661² = 2221371050686033842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053890611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230746 + ... + 235268.

It is an arithmetic number, because the mean of its divisors is an integer number (88828740).

Almost surely, 2^1053890661 is an apocalyptic number.

It is an amenable number.

1053890661 is a deficient number, since it is larger than the sum of its proper divisors (367369179).

1053890661 is a wasteful number, since it uses less digits than its factorization.

1053890661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5396.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 1053890661 is about 32463.6821848662. The cubic root of 1053890661 is about 1017.6501915544.

The spelling of 1053890661 in words is "one billion, fifty-three million, eight hundred ninety thousand, six hundred sixty-one".