137420843 has 24 divisors (see below), whose sum is σ = 170316000. Its totient is φ = 110170368.

The previous prime is 137420831. The next prime is 137420867. The reversal of 137420843 is 348024731.

It is not a de Polignac number, because 137420843 - 2⁶ = 137420779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137420813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165353 + ... + 166181.

It is an arithmetic number, because the mean of its divisors is an integer number (7096500).

Almost surely, 2^137420843 is an apocalyptic number.

137420843 is a deficient number, since it is larger than the sum of its proper divisors (32895157).

137420843 is a wasteful number, since it uses less digits than its factorization.

137420843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 137420843 is about 11722.6636478234. The cubic root of 137420843 is about 516.0409936284.

The spelling of 137420843 in words is "one hundred thirty-seven million, four hundred twenty thousand, eight hundred forty-three".