1021464551 has 2 divisors, whose sum is σ = 1021464552. Its totient is φ = 1021464550.

The previous prime is 1021464497. The next prime is 1021464559. The reversal of 1021464551 is 1554641201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021464551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021464559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510732275 + 510732276.

It is an arithmetic number, because the mean of its divisors is an integer number (510732276).

Almost surely, 2^1021464551 is an apocalyptic number.

1021464551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021464551 is an equidigital number, since it uses as much as digits as its factorization.

1021464551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1021464551 is about 31960.3590561808. The cubic root of 1021464551 is about 1007.1042603004.

The spelling of 1021464551 in words is "one billion, twenty-one million, four hundred sixty-four thousand, five hundred fifty-one".