137422 has 4 divisors (see below), whose sum is σ = 206136. Its totient is φ = 68710.

The previous prime is 137413. The next prime is 137437. The reversal of 137422 is 224731.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 137422.

It is a congruent number.

It is an unprimeable number.

137422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34354 + ... + 34357.

It is an arithmetic number, because the mean of its divisors is an integer number (51534).

2¹³⁷⁴²² is an apocalyptic number.

137422 is a deficient number, since it is larger than the sum of its proper divisors (68714).

137422 is an equidigital number, since it uses as much as digits as its factorization.

137422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68713.

The product of its digits is 336, while the sum is 19.

The square root of 137422 is about 370.7047342563. The cubic root of 137422 is about 51.6042441875.

The spelling of 137422 in words is "one hundred thirty-seven thousand, four hundred twenty-two".