137143043 has 4 divisors (see below), whose sum is σ = 143105808. Its totient is φ = 131180280.

The previous prime is 137143021. The next prime is 137143049. The reversal of 137143043 is 340341731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340341731 = 197 ⋅1727623.

It is a cyclic number.

It is not a de Polignac number, because 137143043 - 2⁸ = 137142787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137143049) 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, 2981348 + ... + 2981393.

It is an arithmetic number, because the mean of its divisors is an integer number (35776452).

Almost surely, 2^137143043 is an apocalyptic number.

137143043 is a deficient number, since it is larger than the sum of its proper divisors (5962765).

137143043 is an equidigital number, since it uses as much as digits as its factorization.

137143043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5962764.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 137143043 is about 11710.8088106672. The cubic root of 137143043 is about 515.6930287127.

Adding to 137143043 its reverse (340341731), we get a palindrome (477484774).

The spelling of 137143043 in words is "one hundred thirty-seven million, one hundred forty-three thousand, forty-three".