83070139 has 2 divisors, whose sum is σ = 83070140. Its totient is φ = 83070138.

The previous prime is 83070137. The next prime is 83070149. The reversal of 83070139 is 93107038.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83070139 - 2¹ = 83070137 is a prime.

Together with 83070137, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 83070139.

It is not a weakly prime, because it can be changed into another prime (83070137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41535069 + 41535070.

It is an arithmetic number, because the mean of its divisors is an integer number (41535070).

Almost surely, 2^83070139 is an apocalyptic number.

83070139 is a deficient number, since it is larger than the sum of its proper divisors (1).

83070139 is an equidigital number, since it uses as much as digits as its factorization.

83070139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 83070139 is about 9114.2821439760. The cubic root of 83070139 is about 436.3299045487.

The spelling of 83070139 in words is "eighty-three million, seventy thousand, one hundred thirty-nine".