142106751 has 32 divisors (see below), whose sum is σ = 219974400. Its totient is φ = 90577440.

The previous prime is 142106747. The next prime is 142106753. The reversal of 142106751 is 157601241.

It is a happy number.

142106751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142106751 - 2² = 142106747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142106753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57736 + ... + 60146.

It is an arithmetic number, because the mean of its divisors is an integer number (6874200).

Almost surely, 2^142106751 is an apocalyptic number.

142106751 is a deficient number, since it is larger than the sum of its proper divisors (77867649).

142106751 is a wasteful number, since it uses less digits than its factorization.

142106751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516 (or 2510 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 142106751 is about 11920.8536187641. The cubic root of 142106751 is about 521.8410468594.

Adding to 142106751 its reverse (157601241), we get a palindrome (299707992).

The spelling of 142106751 in words is "one hundred forty-two million, one hundred six thousand, seven hundred fifty-one".