137534421 has 8 divisors (see below), whose sum is σ = 183434080. Its totient is φ = 91662192.

The previous prime is 137534413. The next prime is 137534429. The reversal of 137534421 is 124435731.

It is a happy number.

137534421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (137534413) and next prime (137534429).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 137534421 - 2³ = 137534413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137534429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13371 + ... + 21303.

It is an arithmetic number, because the mean of its divisors is an integer number (22929260).

Almost surely, 2^137534421 is an apocalyptic number.

It is an amenable number.

137534421 is a deficient number, since it is larger than the sum of its proper divisors (45899659).

137534421 is an equidigital number, since it uses as much as digits as its factorization.

137534421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13715.

The product of its digits is 10080, while the sum is 30.

The square root of 137534421 is about 11727.5070240866. The cubic root of 137534421 is about 516.1831233637.

The spelling of 137534421 in words is "one hundred thirty-seven million, five hundred thirty-four thousand, four hundred twenty-one".