120629881 has 2 divisors, whose sum is σ = 120629882. Its totient is φ = 120629880.

The previous prime is 120629869. The next prime is 120629893. The reversal of 120629881 is 188926021.

It is a balanced prime because it is at equal distance from previous prime (120629869) and next prime (120629893).

It can be written as a sum of positive squares in only one way, i.e., 103124025 + 17505856 = 10155^2 + 4184^2 .

It is an emirp because it is prime and its reverse (188926021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120629881 is a prime.

It is a super-2 number, since 2×120629881² = 29103136380148322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120629881.

It is not a weakly prime, because it can be changed into another prime (120629801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60314940 + 60314941.

It is an arithmetic number, because the mean of its divisors is an integer number (60314941).

Almost surely, 2^120629881 is an apocalyptic number.

It is an amenable number.

120629881 is a deficient number, since it is larger than the sum of its proper divisors (1).

120629881 is an equidigital number, since it uses as much as digits as its factorization.

120629881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 120629881 is about 10983.1635242311. The cubic root of 120629881 is about 494.1039204517.

The spelling of 120629881 in words is "one hundred twenty million, six hundred twenty-nine thousand, eight hundred eighty-one".