142106745 has 32 divisors (see below), whose sum is σ = 250853760. Its totient is φ = 68119040.

The previous prime is 142106737. The next prime is 142106747. The reversal of 142106745 is 547601241.

It is not a de Polignac number, because 142106745 - 2³ = 142106737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142106747) 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, 9847 + ... + 19523.

It is an arithmetic number, because the mean of its divisors is an integer number (7839180).

Almost surely, 2^142106745 is an apocalyptic number.

142106745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142106745 is a deficient number, since it is larger than the sum of its proper divisors (108747015).

142106745 is a wasteful number, since it uses less digits than its factorization.

142106745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9785.

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

The square root of 142106745 is about 11920.8533671042. The cubic root of 142106745 is about 521.8410395150.

Adding to 142106745 its reverse (547601241), we get a palindrome (689707986).

The spelling of 142106745 in words is "one hundred forty-two million, one hundred six thousand, seven hundred forty-five".