1045587989 has 8 divisors (see below), whose sum is σ = 1064160000. Its totient is φ = 1027149552.

The previous prime is 1045587971. The next prime is 1045588003. The reversal of 1045587989 is 9897855401.

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

It is a cyclic number.

It is not a de Polignac number, because 1045587989 - 2¹⁶ = 1045522453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045587919) 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, 17534 + ... + 48975.

It is an arithmetic number, because the mean of its divisors is an integer number (133020000).

Almost surely, 2^1045587989 is an apocalyptic number.

It is an amenable number.

1045587989 is a deficient number, since it is larger than the sum of its proper divisors (18572011).

1045587989 is an equidigital number, since it uses as much as digits as its factorization.

1045587989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66787.

The product of its (nonzero) digits is 3628800, while the sum is 56.

The square root of 1045587989 is about 32335.5530183110. The cubic root of 1045587989 is about 1014.9707544131.

The spelling of 1045587989 in words is "one billion, forty-five million, five hundred eighty-seven thousand, nine hundred eighty-nine".