315022000 has 80 divisors (see below), whose sum is σ = 786449664. Its totient is φ = 121920000.

The previous prime is 315021979. The next prime is 315022003. The reversal of 315022000 is 220513.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315022003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59460 + ... + 64540.

Almost surely, 2^315022000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393224832).

315022000 is an abundant number, since it is smaller than the sum of its proper divisors (471427664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315022000 is a wasteful number, since it uses less digits than its factorization.

315022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5135 (or 5119 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 315022000 is about 17748.8591182645. The cubic root of 315022000 is about 680.4250514410.

Adding to 315022000 its reverse (220513), we get a palindrome (315242513).

The spelling of 315022000 in words is "three hundred fifteen million, twenty-two thousand".