945736521 has 12 divisors (see below), whose sum is σ = 1267571472. Its totient is φ = 627213328.

The previous prime is 945736511. The next prime is 945736523. The reversal of 945736521 is 125637549.

It is not a de Polignac number, because 945736521 - 2⁵ = 945736489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (945736523) 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, 112366 + ... + 120488.

It is an arithmetic number, because the mean of its divisors is an integer number (105630956).

Almost surely, 2^945736521 is an apocalyptic number.

It is an amenable number.

945736521 is a deficient number, since it is larger than the sum of its proper divisors (321834951).

945736521 is an equidigital number, since it uses as much as digits as its factorization.

945736521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8520 (or 8323 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The square root of 945736521 is about 30752.8294795780. The cubic root of 945736521 is about 981.5747696067.

The spelling of 945736521 in words is "nine hundred forty-five million, seven hundred thirty-six thousand, five hundred twenty-one".