945981045 has 16 divisors (see below), whose sum is σ = 1681744320. Its totient is φ = 504523152.

The previous prime is 945981017. The next prime is 945981059. The reversal of 945981045 is 540189549.

945981045 is a `hidden beast` number, since 9 + 4 + 598 + 10 + 45 = 666.

It is not a de Polignac number, because 945981045 - 2⁵ = 945981013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3503499 + ... + 3503768.

It is an arithmetic number, because the mean of its divisors is an integer number (105109020).

Almost surely, 2^945981045 is an apocalyptic number.

It is an amenable number.

945981045 is a deficient number, since it is larger than the sum of its proper divisors (735763275).

945981045 is a wasteful number, since it uses less digits than its factorization.

945981045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7007281 (or 7007275 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 945981045 is about 30756.8048568118. The cubic root of 945981045 is about 981.6593590248.

The spelling of 945981045 in words is "nine hundred forty-five million, nine hundred eighty-one thousand, forty-five".