137020732 has 12 divisors (see below), whose sum is σ = 239941800. Its totient is φ = 68465936.

The previous prime is 137020727. The next prime is 137020733. The reversal of 137020732 is 237020731.

It is a junction number, because it is equal to n+sod(n) for n = 137020697 and 137020706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137020733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3607 + ... + 16942.

It is an arithmetic number, because the mean of its divisors is an integer number (19995150).

Almost surely, 2^137020732 is an apocalyptic number.

It is an amenable number.

137020732 is a deficient number, since it is larger than the sum of its proper divisors (102921068).

137020732 is a wasteful number, since it uses less digits than its factorization.

137020732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22220 (or 22218 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 137020732 is about 11705.5855043650. The cubic root of 137020732 is about 515.5396762006.

Subtracting 137020732 from its reverse (237020731), we obtain a palindrome (99999999).

The spelling of 137020732 in words is "one hundred thirty-seven million, twenty thousand, seven hundred thirty-two".