137543652 has 72 divisors (see below), whose sum is σ = 368705792. Its totient is φ = 43156800.

The previous prime is 137543591. The next prime is 137543663. The reversal of 137543652 is 256345731.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39627 + ... + 42957.

Almost surely, 2^137543652 is an apocalyptic number.

137543652 is a gapful number since it is divisible by the number (12) 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 137543652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184352896).

137543652 is an abundant number, since it is smaller than the sum of its proper divisors (231162140).

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

137543652 is a wasteful number, since it uses less digits than its factorization.

137543652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3409 (or 3404 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 137543652 is about 11727.9005793876. The cubic root of 137543652 is about 516.1946714542.

The spelling of 137543652 in words is "one hundred thirty-seven million, five hundred forty-three thousand, six hundred fifty-two".