215460463 has 2 divisors, whose sum is σ = 215460464. Its totient is φ = 215460462.

The previous prime is 215460461. The next prime is 215460467. The reversal of 215460463 is 364064512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215460463 - 2¹ = 215460461 is a prime.

It is a super-2 number, since 2×215460463² = 92846422232348738, which contains 22 as substring.

Together with 215460461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215460461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107730231 + 107730232.

It is an arithmetic number, because the mean of its divisors is an integer number (107730232).

Almost surely, 2^215460463 is an apocalyptic number.

215460463 is a deficient number, since it is larger than the sum of its proper divisors (1).

215460463 is an equidigital number, since it uses as much as digits as its factorization.

215460463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 215460463 is about 14678.5715585680. The cubic root of 215460463 is about 599.5000121731.

The spelling of 215460463 in words is "two hundred fifteen million, four hundred sixty thousand, four hundred sixty-three".