137851442 has 16 divisors (see below), whose sum is σ = 214545240. Its totient is φ = 66350592.

The previous prime is 137851433. The next prime is 137851481. The reversal of 137851442 is 244158731.

It can be written as a sum of positive squares in 4 ways, for example, as 137147521 + 703921 = 11711^2 + 839^2 .

It is a super-4 number, since 4×137851442⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17108 + ... + 23840.

Almost surely, 2^137851442 is an apocalyptic number.

137851442 is a deficient number, since it is larger than the sum of its proper divisors (76693798).

137851442 is a wasteful number, since it uses less digits than its factorization.

137851442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7117.

The product of its digits is 26880, while the sum is 35.

The square root of 137851442 is about 11741.0153734675. The cubic root of 137851442 is about 516.5794249274.

The spelling of 137851442 in words is "one hundred thirty-seven million, eight hundred fifty-one thousand, four hundred forty-two".