163011139 has 2 divisors, whose sum is σ = 163011140. Its totient is φ = 163011138.

The previous prime is 163011109. The next prime is 163011157. The reversal of 163011139 is 931110361.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163011139 - 2¹⁹ = 162486851 is a prime.

It is not a weakly prime, because it can be changed into another prime (163011109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81505569 + 81505570.

It is an arithmetic number, because the mean of its divisors is an integer number (81505570).

Almost surely, 2^163011139 is an apocalyptic number.

163011139 is a deficient number, since it is larger than the sum of its proper divisors (1).

163011139 is an equidigital number, since it uses as much as digits as its factorization.

163011139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 163011139 is about 12767.5815642588. The cubic root of 163011139 is about 546.2680000771.

It can be divided in two parts, 1630 and 11139, that added together give a square (12769 = 113²).

The spelling of 163011139 in words is "one hundred sixty-three million, eleven thousand, one hundred thirty-nine".