1053894997 has 4 divisors (see below), whose sum is σ = 1067235520. Its totient is φ = 1040554476.

The previous prime is 1053894979. The next prime is 1053895001. The reversal of 1053894997 is 7994983501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1053894997 is a prime.

It is a super-2 number, since 2×1053894997² = 2221389329403260018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053894917) 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, 6670143 + ... + 6670300.

It is an arithmetic number, because the mean of its divisors is an integer number (266808880).

Almost surely, 2^1053894997 is an apocalyptic number.

It is an amenable number.

1053894997 is a deficient number, since it is larger than the sum of its proper divisors (13340523).

1053894997 is an equidigital number, since it uses as much as digits as its factorization.

1053894997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13340522.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The square root of 1053894997 is about 32463.7489671172. The cubic root of 1053894997 is about 1017.6515871847.

The spelling of 1053894997 in words is "one billion, fifty-three million, eight hundred ninety-four thousand, nine hundred ninety-seven".