1502242139 has 2 divisors, whose sum is σ = 1502242140. Its totient is φ = 1502242138.

The previous prime is 1502242121. The next prime is 1502242169. The reversal of 1502242139 is 9312422051.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1502242139 - 2¹⁶ = 1502176603 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1502242169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 751121069 + 751121070.

It is an arithmetic number, because the mean of its divisors is an integer number (751121070).

Almost surely, 2^1502242139 is an apocalyptic number.

1502242139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1502242139 is an equidigital number, since it uses as much as digits as its factorization.

1502242139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1502242139 is about 38758.7685433890. The cubic root of 1502242139 is about 1145.2843160394.

The spelling of 1502242139 in words is "one billion, five hundred two million, two hundred forty-two thousand, one hundred thirty-nine".