231215070 has 32 divisors (see below), whose sum is σ = 555857280. Its totient is φ = 61552800.

The previous prime is 231215069. The next prime is 231215077. The reversal of 231215070 is 70512132.

It is a super-3 number, since 3×231215070³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231215077) 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, 12345 + ... + 24795.

It is an arithmetic number, because the mean of its divisors is an integer number (17370540).

Almost surely, 2^231215070 is an apocalyptic number.

231215070 is an abundant number, since it is smaller than the sum of its proper divisors (324642210).

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

231215070 is a wasteful number, since it uses less digits than its factorization.

231215070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13080.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 231215070 is about 15205.7577910474. The cubic root of 231215070 is about 613.7696069606.

The spelling of 231215070 in words is "two hundred thirty-one million, two hundred fifteen thousand, seventy".