214391097 has 16 divisors (see below), whose sum is σ = 336300480. Its totient is φ = 134519616.

The previous prime is 214391083. The next prime is 214391123. The reversal of 214391097 is 790193412.

It is not a de Polignac number, because 214391097 - 2⁶ = 214391033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214396097) 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, 233083 + ... + 234000.

It is an arithmetic number, because the mean of its divisors is an integer number (21018780).

Almost surely, 2^214391097 is an apocalyptic number.

214391097 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

214391097 is a deficient number, since it is larger than the sum of its proper divisors (121909383).

214391097 is a wasteful number, since it uses less digits than its factorization.

214391097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467109 (or 467103 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 214391097 is about 14642.1001567398. The cubic root of 214391097 is about 598.5065608165.

The spelling of 214391097 in words is "two hundred fourteen million, three hundred ninety-one thousand, ninety-seven".