215061465 has 16 divisors (see below), whose sum is σ = 345384000. Its totient is φ = 114270912.

The previous prime is 215061461. The next prime is 215061479. The reversal of 215061465 is 564160512.

It is not a de Polignac number, because 215061465 - 2² = 215061461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215061461) 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, 22615 + ... + 30684.

It is an arithmetic number, because the mean of its divisors is an integer number (21586500).

Almost surely, 2^215061465 is an apocalyptic number.

It is an amenable number.

215061465 is a deficient number, since it is larger than the sum of its proper divisors (130322535).

215061465 is a wasteful number, since it uses less digits than its factorization.

215061465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53576.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 215061465 is about 14664.9740879416. The cubic root of 215061465 is about 599.1297244221.

The spelling of 215061465 in words is "two hundred fifteen million, sixty-one thousand, four hundred sixty-five".