1152314921 has 2 divisors, whose sum is σ = 1152314922. Its totient is φ = 1152314920.

The previous prime is 1152314897. The next prime is 1152314941. The reversal of 1152314921 is 1294132511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 795860521 + 356454400 = 28211^2 + 18880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1152314921 is a prime.

It is not a weakly prime, because it can be changed into another prime (1152314941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576157460 + 576157461.

It is an arithmetic number, because the mean of its divisors is an integer number (576157461).

Almost surely, 2^1152314921 is an apocalyptic number.

It is an amenable number.

1152314921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152314921 is an equidigital number, since it uses as much as digits as its factorization.

1152314921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 1152314921 is about 33945.7644044143. The cubic root of 1152314921 is about 1048.3920728810.

The spelling of 1152314921 in words is "one billion, one hundred fifty-two million, three hundred fourteen thousand, nine hundred twenty-one".