213015470 has 16 divisors (see below), whose sum is σ = 384199200. Its totient is φ = 85034784.

The previous prime is 213015463. The next prime is 213015487. The reversal of 213015470 is 74510312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16145 + ... + 26204.

It is an arithmetic number, because the mean of its divisors is an integer number (24012450).

Almost surely, 2^213015470 is an apocalyptic number.

213015470 is a deficient number, since it is larger than the sum of its proper divisors (171183730).

213015470 is a wasteful number, since it uses less digits than its factorization.

213015470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42859.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 213015470 is about 14595.0495031706. The cubic root of 213015470 is about 597.2237198913.

Adding to 213015470 its reverse (74510312), we get a palindrome (287525782).

The spelling of 213015470 in words is "two hundred thirteen million, fifteen thousand, four hundred seventy".