142271045 has 32 divisors (see below), whose sum is σ = 208044288. Its totient is φ = 91173888.

The previous prime is 142271023. The next prime is 142271111. The reversal of 142271045 is 540172241.

It is a cyclic number.

It is not a de Polignac number, because 142271045 - 2⁶ = 142270981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 92654 + ... + 94176.

It is an arithmetic number, because the mean of its divisors is an integer number (6501384).

Almost surely, 2^142271045 is an apocalyptic number.

It is an amenable number.

142271045 is a deficient number, since it is larger than the sum of its proper divisors (65773243).

142271045 is a wasteful number, since it uses less digits than its factorization.

142271045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 142271045 is about 11927.7426615433. The cubic root of 142271045 is about 522.0420749202.

The spelling of 142271045 in words is "one hundred forty-two million, two hundred seventy-one thousand, forty-five".