137247733 has 8 divisors (see below), whose sum is σ = 157652352. Its totient is φ = 117042576.

The previous prime is 137247731. The next prime is 137247769. The reversal of 137247733 is 337742731.

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

It is not a de Polignac number, because 137247733 - 2¹ = 137247731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137247692 and 137247701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137247731) 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, 48385 + ... + 51142.

It is an arithmetic number, because the mean of its divisors is an integer number (19706544).

Almost surely, 2^137247733 is an apocalyptic number.

It is an amenable number.

137247733 is a deficient number, since it is larger than the sum of its proper divisors (20404619).

137247733 is an equidigital number, since it uses as much as digits as its factorization.

137247733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99731.

The product of its digits is 74088, while the sum is 37.

The square root of 137247733 is about 11715.2777602582. The cubic root of 137247733 is about 515.8242157574.

The spelling of 137247733 in words is "one hundred thirty-seven million, two hundred forty-seven thousand, seven hundred thirty-three".