1254466139 has 2 divisors, whose sum is σ = 1254466140. Its totient is φ = 1254466138.

The previous prime is 1254466111. The next prime is 1254466229. The reversal of 1254466139 is 9316644521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1254466139 - 2¹² = 1254462043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1254466096 and 1254466105.

It is not a weakly prime, because it can be changed into another prime (1254426139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627233069 + 627233070.

It is an arithmetic number, because the mean of its divisors is an integer number (627233070).

Almost surely, 2^1254466139 is an apocalyptic number.

1254466139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254466139 is an equidigital number, since it uses as much as digits as its factorization.

1254466139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 1254466139 is about 35418.4434864097. The cubic root of 1254466139 is about 1078.4987540775.

The spelling of 1254466139 in words is "one billion, two hundred fifty-four million, four hundred sixty-six thousand, one hundred thirty-nine".