137749851 has 12 divisors (see below), whose sum is σ = 201491680. Its totient is φ = 90670320.

The previous prime is 137749849. The next prime is 137749889. The reversal of 137749851 is 158947731.

It is not a de Polignac number, because 137749851 - 2¹ = 137749849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137749797 and 137749806.

It is not an unprimeable number, because it can be changed into a prime (137749841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96160 + ... + 97581.

Almost surely, 2^137749851 is an apocalyptic number.

137749851 is a deficient number, since it is larger than the sum of its proper divisors (63741829).

137749851 is a wasteful number, since it uses less digits than its factorization.

137749851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193826 (or 193823 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 137749851 is about 11736.6882466904. The cubic root of 137749851 is about 516.4524942821.

The spelling of 137749851 in words is "one hundred thirty-seven million, seven hundred forty-nine thousand, eight hundred fifty-one".