914140921 has 2 divisors, whose sum is σ = 914140922. Its totient is φ = 914140920.

The previous prime is 914140897. The next prime is 914140933. The reversal of 914140921 is 129041419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 825987600 + 88153321 = 28740^2 + 9389^2 .

It is a cyclic number.

It is not a de Polignac number, because 914140921 - 2²³ = 905752313 is a prime.

It is not a weakly prime, because it can be changed into another prime (914140951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 457070460 + 457070461.

It is an arithmetic number, because the mean of its divisors is an integer number (457070461).

Almost surely, 2^914140921 is an apocalyptic number.

It is an amenable number.

914140921 is a deficient number, since it is larger than the sum of its proper divisors (1).

914140921 is an equidigital number, since it uses as much as digits as its factorization.

914140921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 914140921 is about 30234.7634520265. The cubic root of 914140921 is about 970.5197628912.

The spelling of 914140921 in words is "nine hundred fourteen million, one hundred forty thousand, nine hundred twenty-one".