1742190139 has 2 divisors, whose sum is σ = 1742190140. Its totient is φ = 1742190138.

The previous prime is 1742190127. The next prime is 1742190181. The reversal of 1742190139 is 9310912471.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1742190139 - 2¹⁵ = 1742157371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1742190098 and 1742190107.

It is not a weakly prime, because it can be changed into another prime (1742190839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 871095069 + 871095070.

It is an arithmetic number, because the mean of its divisors is an integer number (871095070).

Almost surely, 2^1742190139 is an apocalyptic number.

1742190139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1742190139 is an equidigital number, since it uses as much as digits as its factorization.

1742190139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 1742190139 is about 41739.5512553741. The cubic root of 1742190139 is about 1203.2758038520.

The spelling of 1742190139 in words is "one billion, seven hundred forty-two million, one hundred ninety thousand, one hundred thirty-nine".