137143724 has 6 divisors (see below), whose sum is σ = 240001524. Its totient is φ = 68571860.

The previous prime is 137143723. The next prime is 137143751. The reversal of 137143724 is 427341731.

It is not an unprimeable number, because it can be changed into a prime (137143723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17142962 + ... + 17142969.

It is an arithmetic number, because the mean of its divisors is an integer number (40000254).

Almost surely, 2^137143724 is an apocalyptic number.

It is an amenable number.

137143724 is a deficient number, since it is larger than the sum of its proper divisors (102857800).

137143724 is a wasteful number, since it uses less digits than its factorization.

137143724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34285935 (or 34285933 counting only the distinct ones).

The product of its digits is 14112, while the sum is 32.

The square root of 137143724 is about 11710.8378863342. The cubic root of 137143724 is about 515.6938822895.

The spelling of 137143724 in words is "one hundred thirty-seven million, one hundred forty-three thousand, seven hundred twenty-four".