142354121 has 16 divisors (see below), whose sum is σ = 175959168. Its totient is φ = 112147200.

The previous prime is 142354087. The next prime is 142354151. The reversal of 142354121 is 121453241.

It is a cyclic number.

It is not a de Polignac number, because 142354121 - 2¹⁸ = 142091977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142354151) 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, 18686 + ... + 25176.

It is an arithmetic number, because the mean of its divisors is an integer number (10997448).

Almost surely, 2^142354121 is an apocalyptic number.

It is an amenable number.

142354121 is a deficient number, since it is larger than the sum of its proper divisors (33605047).

142354121 is a wasteful number, since it uses less digits than its factorization.

142354121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6752.

The product of its digits is 960, while the sum is 23.

The square root of 142354121 is about 11931.2246228122. The cubic root of 142354121 is about 522.1436667530.

The spelling of 142354121 in words is "one hundred forty-two million, three hundred fifty-four thousand, one hundred twenty-one".