120161837 has 4 divisors (see below), whose sum is σ = 121512060. Its totient is φ = 118811616.

The previous prime is 120161813. The next prime is 120161843. The reversal of 120161837 is 738161021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 738161021 = 13 ⋅56781617.

It can be written as a sum of positive squares in 2 ways, for example, as 28366276 + 91795561 = 5326^2 + 9581^2 .

It is a cyclic number.

It is not a de Polignac number, because 120161837 - 2⁶ = 120161773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120161897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674978 + ... + 675155.

It is an arithmetic number, because the mean of its divisors is an integer number (30378015).

Almost surely, 2^120161837 is an apocalyptic number.

It is an amenable number.

120161837 is a deficient number, since it is larger than the sum of its proper divisors (1350223).

120161837 is an equidigital number, since it uses as much as digits as its factorization.

120161837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350222.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 120161837 is about 10961.8354758681. The cubic root of 120161837 is about 493.4640510175.

The spelling of 120161837 in words is "one hundred twenty million, one hundred sixty-one thousand, eight hundred thirty-seven".