120802639 has 2 divisors, whose sum is σ = 120802640. Its totient is φ = 120802638.

The previous prime is 120802621. The next prime is 120802651. The reversal of 120802639 is 936208021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120802639 - 2²¹ = 118705487 is a prime.

It is a super-3 number, since 3×120802639³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120802639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120802039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60401319 + 60401320.

It is an arithmetic number, because the mean of its divisors is an integer number (60401320).

Almost surely, 2^120802639 is an apocalyptic number.

120802639 is a deficient number, since it is larger than the sum of its proper divisors (1).

120802639 is an equidigital number, since it uses as much as digits as its factorization.

120802639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 120802639 is about 10991.0253843761. The cubic root of 120802639 is about 494.3396820713.

The spelling of 120802639 in words is "one hundred twenty million, eight hundred two thousand, six hundred thirty-nine".