920520451 has 2 divisors, whose sum is σ = 920520452. Its totient is φ = 920520450.

The previous prime is 920520449. The next prime is 920520457. The reversal of 920520451 is 154025029.

920520451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 920520451 - 2¹ = 920520449 is a prime.

Together with 920520449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (920520457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460260225 + 460260226.

It is an arithmetic number, because the mean of its divisors is an integer number (460260226).

Almost surely, 2^920520451 is an apocalyptic number.

920520451 is a deficient number, since it is larger than the sum of its proper divisors (1).

920520451 is an equidigital number, since it uses as much as digits as its factorization.

920520451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 920520451 is about 30340.0799438630. The cubic root of 920520451 is about 972.7721919458.

The spelling of 920520451 in words is "nine hundred twenty million, five hundred twenty thousand, four hundred fifty-one".