1214640617 has 2 divisors, whose sum is σ = 1214640618. Its totient is φ = 1214640616.

The previous prime is 1214640589. The next prime is 1214640631. The reversal of 1214640617 is 7160464121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 644195161 + 570445456 = 25381^2 + 23884^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214640617 - 2²⁶ = 1147531753 is a prime.

It is a super-2 number, since 2×1214640617² = 2950703656932281378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1214640677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607320308 + 607320309.

It is an arithmetic number, because the mean of its divisors is an integer number (607320309).

Almost surely, 2^1214640617 is an apocalyptic number.

It is an amenable number.

1214640617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214640617 is an equidigital number, since it uses as much as digits as its factorization.

1214640617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1214640617 is about 34851.6946072928. The cubic root of 1214640617 is about 1066.9627721667.

The spelling of 1214640617 in words is "one billion, two hundred fourteen million, six hundred forty thousand, six hundred seventeen".