137429 has 4 divisors (see below), whose sum is σ = 140076. Its totient is φ = 134784.

The previous prime is 137413. The next prime is 137437. The reversal of 137429 is 924731.

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

It can be written as a sum of positive squares in 2 ways, for example, as 91204 + 46225 = 302^2 + 215^2 .

It is a cyclic number.

It is not a de Polignac number, because 137429 - 2⁴ = 137413 is a prime.

It is a Duffinian number.

It is a plaindrome in base 7 and base 15.

It is a junction number, because it is equal to n+sod(n) for n = 137398 and 137407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137029) 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, 1244 + ... + 1349.

It is an arithmetic number, because the mean of its divisors is an integer number (35019).

2¹³⁷⁴²⁹ is an apocalyptic number.

It is an amenable number.

137429 is a deficient number, since it is larger than the sum of its proper divisors (2647).

137429 is an equidigital number, since it uses as much as digits as its factorization.

137429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646.

The product of its digits is 1512, while the sum is 26.

The square root of 137429 is about 370.7141756124. The cubic root of 137429 is about 51.6051203780.

The spelling of 137429 in words is "one hundred thirty-seven thousand, four hundred twenty-nine".