137538447 has 8 divisors (see below), whose sum is σ = 185706240. Its totient is φ = 90531480.

The previous prime is 137538421. The next prime is 137538523. The reversal of 137538447 is 744835731.

137538447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 137538447 - 2⁶ = 137538383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 137538399 and 137538408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137538647) 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, 289929 + ... + 290402.

It is an arithmetic number, because the mean of its divisors is an integer number (23213280).

Almost surely, 2^137538447 is an apocalyptic number.

137538447 is a deficient number, since it is larger than the sum of its proper divisors (48167793).

137538447 is an equidigital number, since it uses as much as digits as its factorization.

137538447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580413.

The product of its digits is 282240, while the sum is 42.

The square root of 137538447 is about 11727.6786705639. The cubic root of 137538447 is about 516.1881600010.

The spelling of 137538447 in words is "one hundred thirty-seven million, five hundred thirty-eight thousand, four hundred forty-seven".