315026990 has 8 divisors (see below), whose sum is σ = 567048600. Its totient is φ = 126010792.

The previous prime is 315026989. The next prime is 315026993. The reversal of 315026990 is 99620513.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 315026990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315026993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15751340 + ... + 15751359.

It is an arithmetic number, because the mean of its divisors is an integer number (70881075).

Almost surely, 2^315026990 is an apocalyptic number.

315026990 is a deficient number, since it is larger than the sum of its proper divisors (252021610).

315026990 is a wasteful number, since it uses less digits than its factorization.

315026990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31502706.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 315026990 is about 17748.9996901234. Note that the first 3 decimals coincide. The cubic root of 315026990 is about 680.4286441034.

The spelling of 315026990 in words is "three hundred fifteen million, twenty-six thousand, nine hundred ninety".