1053128989 has 16 divisors (see below), whose sum is σ = 1162377216. Its totient is φ = 946177200.

The previous prime is 1053128987. The next prime is 1053129029. The reversal of 1053128989 is 9898213501.

It is a cyclic number.

It is not a de Polignac number, because 1053128989 - 2¹ = 1053128987 is a prime.

It is a super-2 number, since 2×1053128989² = 2218161334944324242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053128987) 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, 671284 + ... + 672850.

It is an arithmetic number, because the mean of its divisors is an integer number (72648576).

Almost surely, 2^1053128989 is an apocalyptic number.

It is an amenable number.

1053128989 is a deficient number, since it is larger than the sum of its proper divisors (109248227).

1053128989 is a wasteful number, since it uses less digits than its factorization.

1053128989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 1053128989 is about 32451.9489245253. The cubic root of 1053128989 is about 1017.4049724211.

The spelling of 1053128989 in words is "one billion, fifty-three million, one hundred twenty-eight thousand, nine hundred eighty-nine".