139572071 has 2 divisors, whose sum is σ = 139572072. Its totient is φ = 139572070.

The previous prime is 139572061. The next prime is 139572079. The reversal of 139572071 is 170275931.

It is a happy number.

139572071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139572071 - 2⁶ = 139572007 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139572079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69786035 + 69786036.

It is an arithmetic number, because the mean of its divisors is an integer number (69786036).

Almost surely, 2^139572071 is an apocalyptic number.

139572071 is a deficient number, since it is larger than the sum of its proper divisors (1).

139572071 is an equidigital number, since it uses as much as digits as its factorization.

139572071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 139572071 is about 11814.0624257704. The cubic root of 139572071 is about 518.7198181308.

The spelling of 139572071 in words is "one hundred thirty-nine million, five hundred seventy-two thousand, seventy-one".