137120156220 has 96 divisors (see below), whose sum is σ = 390066969600. Its totient is φ = 35984542464.

The previous prime is 137120156219. The next prime is 137120156267. The reversal of 137120156220 is 22651021731.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1408066 + ... + 1502294.

It is an arithmetic number, because the mean of its divisors is an integer number (4063197600).

Almost surely, 2^137120156220 is an apocalyptic number.

137120156220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137120156220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195033484800).

137120156220 is an abundant number, since it is smaller than the sum of its proper divisors (252946813380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137120156220 is a wasteful number, since it uses less digits than its factorization.

137120156220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94627 (or 94625 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

Adding to 137120156220 its reverse (22651021731), we get a palindrome (159771177951).

The spelling of 137120156220 in words is "one hundred thirty-seven billion, one hundred twenty million, one hundred fifty-six thousand, two hundred twenty".