142105746 has 16 divisors (see below), whose sum is σ = 284649408. Its totient is φ = 47295600.

The previous prime is 142105729. The next prime is 142105759. The reversal of 142105746 is 647501241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13950 + ... + 21881.

It is an arithmetic number, because the mean of its divisors is an integer number (17790588).

Almost surely, 2^142105746 is an apocalyptic number.

142105746 is an abundant number, since it is smaller than the sum of its proper divisors (142543662).

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

142105746 is a wasteful number, since it uses less digits than its factorization.

142105746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36497.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 142105746 is about 11920.8114656679. The cubic root of 142105746 is about 521.8398166774.

Adding to 142105746 its reverse (647501241), we get a palindrome (789606987).

The spelling of 142105746 in words is "one hundred forty-two million, one hundred five thousand, seven hundred forty-six".