945131987 has 16 divisors (see below), whose sum is σ = 983160288. Its totient is φ = 907994880.

The previous prime is 945131951. The next prime is 945132007. The reversal of 945131987 is 789131549.

945131987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 945131987 - 2⁶ = 945131923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945131917) 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, 914423 + ... + 915455.

It is an arithmetic number, because the mean of its divisors is an integer number (61447518).

Almost surely, 2^945131987 is an apocalyptic number.

945131987 is a deficient number, since it is larger than the sum of its proper divisors (38028301).

945131987 is a wasteful number, since it uses less digits than its factorization.

945131987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430.

The product of its digits is 272160, while the sum is 47.

The square root of 945131987 is about 30742.9989916404. The cubic root of 945131987 is about 981.3655775148.

The spelling of 945131987 in words is "nine hundred forty-five million, one hundred thirty-one thousand, nine hundred eighty-seven".