10921451 has 2 divisors, whose sum is σ = 10921452. Its totient is φ = 10921450.

The previous prime is 10921439. The next prime is 10921453. The reversal of 10921451 is 15412901.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10921451 - 2¹⁴ = 10905067 is a prime.

It is a Sophie Germain prime.

Together with 10921453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10921453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5460725 + 5460726.

It is an arithmetic number, because the mean of its divisors is an integer number (5460726).

Almost surely, 2^10921451 is an apocalyptic number.

10921451 is a deficient number, since it is larger than the sum of its proper divisors (1).

10921451 is an equidigital number, since it uses as much as digits as its factorization.

10921451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 10921451 is about 3304.7618673665. The cubic root of 10921451 is about 221.8673760787.

The spelling of 10921451 in words is "ten million, nine hundred twenty-one thousand, four hundred fifty-one".