8139451 has 2 divisors, whose sum is σ = 8139452. Its totient is φ = 8139450.

The previous prime is 8139431. The next prime is 8139457. The reversal of 8139451 is 1549318.

8139451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8139451 - 2¹⁹ = 7615163 is a prime.

It is not a weakly prime, because it can be changed into another prime (8139457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4069725 + 4069726.

It is an arithmetic number, because the mean of its divisors is an integer number (4069726).

Almost surely, 2^8139451 is an apocalyptic number.

8139451 is a deficient number, since it is larger than the sum of its proper divisors (1).

8139451 is an equidigital number, since it uses as much as digits as its factorization.

8139451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The square root of 8139451 is about 2852.9723097149. The cubic root of 8139451 is about 201.1554040209.

The spelling of 8139451 in words is "eight million, one hundred thirty-nine thousand, four hundred fifty-one".