945540031 has 8 divisors (see below), whose sum is σ = 966216384. Its totient is φ = 924887040.

The previous prime is 945540023. The next prime is 945540049. The reversal of 945540031 is 130045549.

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 945540031 - 2³ = 945540023 is a prime.

It is a super-4 number, since 4×945540031⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 945539975 and 945540002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945540131) 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, 94551 + ... + 104071.

It is an arithmetic number, because the mean of its divisors is an integer number (120777048).

Almost surely, 2^945540031 is an apocalyptic number.

945540031 is a deficient number, since it is larger than the sum of its proper divisors (20676353).

945540031 is a wasteful number, since it uses less digits than its factorization.

945540031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11681.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 945540031 is about 30749.6346482361. The cubic root of 945540031 is about 981.5067862657.

The spelling of 945540031 in words is "nine hundred forty-five million, five hundred forty thousand, thirty-one".