142040351 has 8 divisors (see below), whose sum is σ = 143902800. Its totient is φ = 140184000.

The previous prime is 142040323. The next prime is 142040401. The reversal of 142040351 is 153040241.

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 142040351 - 2¹⁰ = 142039327 is a prime.

It is a super-2 number, since 2×142040351² = 40350922624406402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142043351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61976 + ... + 64226.

It is an arithmetic number, because the mean of its divisors is an integer number (17987850).

Almost surely, 2^142040351 is an apocalyptic number.

142040351 is a deficient number, since it is larger than the sum of its proper divisors (1862449).

142040351 is an equidigital number, since it uses as much as digits as its factorization.

142040351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 142040351 is about 11918.0682579015. The cubic root of 142040351 is about 521.7597566943.

Adding to 142040351 its reverse (153040241), we get a palindrome (295080592).

The spelling of 142040351 in words is "one hundred forty-two million, forty thousand, three hundred fifty-one".