142145411 has 4 divisors (see below), whose sum is σ = 143944800. Its totient is φ = 140346024.

The previous prime is 142145407. The next prime is 142145413. The reversal of 142145411 is 114541241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114541241 = 163 ⋅702707.

It is a cyclic number.

It is not a de Polignac number, because 142145411 - 2² = 142145407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142145413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 899576 + ... + 899733.

It is an arithmetic number, because the mean of its divisors is an integer number (35986200).

Almost surely, 2^142145411 is an apocalyptic number.

142145411 is a deficient number, since it is larger than the sum of its proper divisors (1799389).

142145411 is an equidigital number, since it uses as much as digits as its factorization.

142145411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799388.

The product of its digits is 640, while the sum is 23.

The square root of 142145411 is about 11922.4750366692. The cubic root of 142145411 is about 521.8883646810. Note that the first 3 decimals are identical.

Adding to 142145411 its reverse (114541241), we get a palindrome (256686652).

The spelling of 142145411 in words is "one hundred forty-two million, one hundred forty-five thousand, four hundred eleven".