4149138 has 32 divisors (see below), whose sum is σ = 9547776. Its totient is φ = 1177488.

The previous prime is 4149137. The next prime is 4149151. The reversal of 4149138 is 8319414.

4149138 = T₄₆₂ + T₄₆₃ + ... + T₄₉₇.

It is a happy number.

It is a super-2 number, since 2×4149138² = 34430692286088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4149137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9145 + ... + 9587.

It is an arithmetic number, because the mean of its divisors is an integer number (298368).

Almost surely, 2^4149138 is an apocalyptic number.

4149138 is an abundant number, since it is smaller than the sum of its proper divisors (5398638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4149138 is a wasteful number, since it uses less digits than its factorization.

4149138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678.

The product of its digits is 3456, while the sum is 30.

The square root of 4149138 is about 2036.9432981799. The cubic root of 4149138 is about 160.6889303774.

The spelling of 4149138 in words is "four million, one hundred forty-nine thousand, one hundred thirty-eight".