2515830139 has 2 divisors, whose sum is σ = 2515830140. Its totient is φ = 2515830138.

The previous prime is 2515830113. The next prime is 2515830173. The reversal of 2515830139 is 9310385152.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2515830139 - 2¹³ = 2515821947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2515830098 and 2515830107.

It is not a weakly prime, because it can be changed into another prime (2515830179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257915069 + 1257915070.

It is an arithmetic number, because the mean of its divisors is an integer number (1257915070).

Almost surely, 2^2515830139 is an apocalyptic number.

2515830139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515830139 is an equidigital number, since it uses as much as digits as its factorization.

2515830139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 2515830139 is about 50158.0515869586. The cubic root of 2515830139 is about 1360.0674236686.

The spelling of 2515830139 in words is "two billion, five hundred fifteen million, eight hundred thirty thousand, one hundred thirty-nine".