137051647 has 4 divisors (see below), whose sum is σ = 138408696. Its totient is φ = 135694600.

The previous prime is 137051611. The next prime is 137051657. The reversal of 137051647 is 746150731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746150731 = 101 ⋅7387631.

It is a cyclic number.

It is not a de Polignac number, because 137051647 - 2¹¹ = 137049599 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 (137051657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678373 + ... + 678574.

It is an arithmetic number, because the mean of its divisors is an integer number (34602174).

Almost surely, 2^137051647 is an apocalyptic number.

137051647 is a deficient number, since it is larger than the sum of its proper divisors (1357049).

137051647 is a wasteful number, since it uses less digits than its factorization.

137051647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357048.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 137051647 is about 11706.9059533252. The cubic root of 137051647 is about 515.5784457853.

The spelling of 137051647 in words is "one hundred thirty-seven million, fifty-one thousand, six hundred forty-seven".