215113607 has 2 divisors, whose sum is σ = 215113608. Its totient is φ = 215113606.

The previous prime is 215113583. The next prime is 215113621. The reversal of 215113607 is 706311512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215113607 - 2¹⁸ = 214851463 is a prime.

It is a super-3 number, since 3×215113607³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215113637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107556803 + 107556804.

It is an arithmetic number, because the mean of its divisors is an integer number (107556804).

Almost surely, 2^215113607 is an apocalyptic number.

215113607 is a deficient number, since it is larger than the sum of its proper divisors (1).

215113607 is an equidigital number, since it uses as much as digits as its factorization.

215113607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 215113607 is about 14666.7517535411. The cubic root of 215113607 is about 599.1781404997.

The spelling of 215113607 in words is "two hundred fifteen million, one hundred thirteen thousand, six hundred seven".