1072891451 has 2 divisors, whose sum is σ = 1072891452. Its totient is φ = 1072891450.

The previous prime is 1072891447. The next prime is 1072891481. The reversal of 1072891451 is 1541982701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1072891451 - 2² = 1072891447 is a prime.

It is not a weakly prime, because it can be changed into another prime (1072891481) 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, 536445725 + 536445726.

It is an arithmetic number, because the mean of its divisors is an integer number (536445726).

Almost surely, 2^1072891451 is an apocalyptic number.

1072891451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072891451 is an equidigital number, since it uses as much as digits as its factorization.

1072891451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 1072891451 is about 32755.0217676618. The cubic root of 1072891451 is about 1023.7296023085.

The spelling of 1072891451 in words is "one billion, seventy-two million, eight hundred ninety-one thousand, four hundred fifty-one".