137851438 has 8 divisors (see below), whose sum is σ = 206827632. Its totient is φ = 68908896.

The previous prime is 137851433. The next prime is 137851481. The reversal of 137851438 is 834158731.

137851438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-4 number, since 4×137851438⁴ (a number of 34 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 137851438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137851433) 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, 9231 + ... + 18997.

It is an arithmetic number, because the mean of its divisors is an integer number (25853454).

Almost surely, 2^137851438 is an apocalyptic number.

137851438 is a deficient number, since it is larger than the sum of its proper divisors (68976194).

137851438 is an equidigital number, since it uses as much as digits as its factorization.

137851438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16826.

The product of its digits is 80640, while the sum is 40.

The square root of 137851438 is about 11741.0152031245. The cubic root of 137851438 is about 516.5794199309.

The spelling of 137851438 in words is "one hundred thirty-seven million, eight hundred fifty-one thousand, four hundred thirty-eight".