351512990 has 8 divisors (see below), whose sum is σ = 632723400. Its totient is φ = 140605192.

The previous prime is 351512989. The next prime is 351513017. The reversal of 351512990 is 99215153.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×351512990² = 247122764277480200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 351512990.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17575640 + ... + 17575659.

It is an arithmetic number, because the mean of its divisors is an integer number (79090425).

Almost surely, 2^351512990 is an apocalyptic number.

351512990 is a deficient number, since it is larger than the sum of its proper divisors (281210410).

351512990 is a wasteful number, since it uses less digits than its factorization.

351512990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35151306.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 351512990 is about 18748.6796868473. The cubic root of 351512990 is about 705.7438889454.

The spelling of 351512990 in words is "three hundred fifty-one million, five hundred twelve thousand, nine hundred ninety".