45981089 has 12 divisors (see below), whose sum is σ = 57762432. Its totient is φ = 35828760.

The previous prime is 45981077. The next prime is 45981101. The reversal of 45981089 is 98018954.

It is an interprime number because it is at equal distance from previous prime (45981077) and next prime (45981101).

It is not a de Polignac number, because 45981089 - 2¹⁶ = 45915553 is a prime.

It is a super-2 number, since 2×45981089² = 4228521091251842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45981389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26297 + ... + 27990.

It is an arithmetic number, because the mean of its divisors is an integer number (4813536).

Almost surely, 2^45981089 is an apocalyptic number.

It is an amenable number.

45981089 is a deficient number, since it is larger than the sum of its proper divisors (11781343).

45981089 is a wasteful number, since it uses less digits than its factorization.

45981089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54316 (or 54305 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 45981089 is about 6780.9357023939. The cubic root of 45981089 is about 358.2556796336.

The spelling of 45981089 in words is "forty-five million, nine hundred eighty-one thousand, eighty-nine".