137682749 has 8 divisors (see below), whose sum is σ = 147025920. Its totient is φ = 128646000.

The previous prime is 137682739. The next prime is 137682757. The reversal of 137682749 is 947286731.

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

It is a cyclic number.

It is not a de Polignac number, because 137682749 - 2¹⁶ = 137617213 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 (137682739) 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, 75677 + ... + 77474.

It is an arithmetic number, because the mean of its divisors is an integer number (18378240).

Almost surely, 2^137682749 is an apocalyptic number.

It is an amenable number.

137682749 is a deficient number, since it is larger than the sum of its proper divisors (9343171).

137682749 is a wasteful number, since it uses less digits than its factorization.

137682749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153211.

The product of its digits is 508032, while the sum is 47.

The square root of 137682749 is about 11733.8292556181. The cubic root of 137682749 is about 516.3686209331.

The spelling of 137682749 in words is "one hundred thirty-seven million, six hundred eighty-two thousand, seven hundred forty-nine".