142033121 has 8 divisors (see below), whose sum is σ = 146204544. Its totient is φ = 137879280.

The previous prime is 142033091. The next prime is 142033127. The reversal of 142033121 is 121330241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142033121 - 2¹⁸ = 141770977 is a prime.

It is a super-2 number, since 2×142033121² = 40346814922001282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142033121.

It is not an unprimeable number, because it can be changed into a prime (142033127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12986 + ... + 21276.

It is an arithmetic number, because the mean of its divisors is an integer number (18275568).

Almost surely, 2^142033121 is an apocalyptic number.

It is an amenable number.

142033121 is a deficient number, since it is larger than the sum of its proper divisors (4171423).

142033121 is an equidigital number, since it uses as much as digits as its factorization.

142033121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8791.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 142033121 is about 11917.7649330737. The cubic root of 142033121 is about 521.7509038413.

Adding to 142033121 its reverse (121330241), we get a palindrome (263363362).

The spelling of 142033121 in words is "one hundred forty-two million, thirty-three thousand, one hundred twenty-one".