214155647 has 12 divisors (see below), whose sum is σ = 230633136. Its totient is φ = 198777600.

The previous prime is 214155637. The next prime is 214155661. The reversal of 214155647 is 746551412.

It is not a de Polignac number, because 214155647 - 2²⁴ = 197378431 is a prime.

It is a super-2 number, since 2×214155647² = 91725282283977218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214155607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16022 + ... + 26172.

It is an arithmetic number, because the mean of its divisors is an integer number (19219428).

Almost surely, 2^214155647 is an apocalyptic number.

214155647 is a deficient number, since it is larger than the sum of its proper divisors (16477489).

214155647 is a wasteful number, since it uses less digits than its factorization.

214155647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10258 (or 10241 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 214155647 is about 14634.0577762970. The cubic root of 214155647 is about 598.2873819576.

The spelling of 214155647 in words is "two hundred fourteen million, one hundred fifty-five thousand, six hundred forty-seven".