142638041 has 16 divisors (see below), whose sum is σ = 185883264. Its totient is φ = 106216704.

The previous prime is 142638011. The next prime is 142638043. The reversal of 142638041 is 140836241.

It is a cyclic number.

It is not a de Polignac number, because 142638041 - 2⁶ = 142637977 is a prime.

It is a super-2 number, since 2×142638041² = 40691221480635362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142637995 and 142638013.

It is not an unprimeable number, because it can be changed into a prime (142638043) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 44555 + ... + 47648.

It is an arithmetic number, because the mean of its divisors is an integer number (11617704).

Almost surely, 2^142638041 is an apocalyptic number.

It is an amenable number.

142638041 is a deficient number, since it is larger than the sum of its proper divisors (43245223).

142638041 is a wasteful number, since it uses less digits than its factorization.

142638041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92240.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 142638041 is about 11943.1168879820. The cubic root of 142638041 is about 522.4905682691.

The spelling of 142638041 in words is "one hundred forty-two million, six hundred thirty-eight thousand, forty-one".