351530985 has 32 divisors (see below), whose sum is σ = 609356160. Its totient is φ = 173045184.

The previous prime is 351530941. The next prime is 351530987. The reversal of 351530985 is 589035153.

It is a happy number.

It is not a de Polignac number, because 351530985 - 2⁷ = 351530857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (351530987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27622 + ... + 38288.

It is an arithmetic number, because the mean of its divisors is an integer number (19042380).

Almost surely, 2^351530985 is an apocalyptic number.

It is an amenable number.

351530985 is a deficient number, since it is larger than the sum of its proper divisors (257825175).

351530985 is a wasteful number, since it uses less digits than its factorization.

351530985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10714 (or 10688 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 39.

The square root of 351530985 is about 18749.1595811652. The cubic root of 351530985 is about 705.7559317858.

The spelling of 351530985 in words is "three hundred fifty-one million, five hundred thirty thousand, nine hundred eighty-five".