137269443 has 4 divisors (see below), whose sum is σ = 183025928. Its totient is φ = 91512960.

The previous prime is 137269427. The next prime is 137269463. The reversal of 137269443 is 344962731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344962731 = 3 ⋅114987577.

It is not a de Polignac number, because 137269443 - 2⁴ = 137269427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137269423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22878238 + ... + 22878243.

It is an arithmetic number, because the mean of its divisors is an integer number (45756482).

Almost surely, 2^137269443 is an apocalyptic number.

137269443 is a deficient number, since it is larger than the sum of its proper divisors (45756485).

137269443 is an equidigital number, since it uses as much as digits as its factorization.

137269443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45756484.

The product of its digits is 108864, while the sum is 39.

The square root of 137269443 is about 11716.2042914930. The cubic root of 137269443 is about 515.8514122073.

The spelling of 137269443 in words is "one hundred thirty-seven million, two hundred sixty-nine thousand, four hundred forty-three".