1402528139 has 2 divisors, whose sum is σ = 1402528140. Its totient is φ = 1402528138.

The previous prime is 1402528093. The next prime is 1402528151. The reversal of 1402528139 is 9318252041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402528139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1402528099 and 1402528108.

It is not a weakly prime, because it can be changed into another prime (1402525139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701264069 + 701264070.

It is an arithmetic number, because the mean of its divisors is an integer number (701264070).

Almost surely, 2^1402528139 is an apocalyptic number.

1402528139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402528139 is an equidigital number, since it uses as much as digits as its factorization.

1402528139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1402528139 is about 37450.3423081819. The cubic root of 1402528139 is about 1119.3619183785.

The spelling of 1402528139 in words is "one billion, four hundred two million, five hundred twenty-eight thousand, one hundred thirty-nine".