214153969 has 2 divisors, whose sum is σ = 214153970. Its totient is φ = 214153968.

The previous prime is 214153957. The next prime is 214154023. The reversal of 214153969 is 969351412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190026225 + 24127744 = 13785^2 + 4912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214153969 is a prime.

It is a super-2 number, since 2×214153969² = 91723844876905922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (214153939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107076984 + 107076985.

It is an arithmetic number, because the mean of its divisors is an integer number (107076985).

Almost surely, 2^214153969 is an apocalyptic number.

It is an amenable number.

214153969 is a deficient number, since it is larger than the sum of its proper divisors (1).

214153969 is an equidigital number, since it uses as much as digits as its factorization.

214153969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 40.

The square root of 214153969 is about 14634.0004441711. Note that the first 3 decimals coincide. The cubic root of 214153969 is about 598.2858193420.

The spelling of 214153969 in words is "two hundred fourteen million, one hundred fifty-three thousand, nine hundred sixty-nine".