142605331 has 8 divisors (see below), whose sum is σ = 155660400. Its totient is φ = 129565440.

The previous prime is 142605319. The next prime is 142605341. The reversal of 142605331 is 133506241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142605331 is a prime.

It is a super-2 number, since 2×142605331² = 40672560859239122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142605296 and 142605305.

It is not an unprimeable number, because it can be changed into a prime (142605341) 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, 26215 + ... + 31183.

It is an arithmetic number, because the mean of its divisors is an integer number (19457550).

Almost surely, 2^142605331 is an apocalyptic number.

142605331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142605331 is a deficient number, since it is larger than the sum of its proper divisors (13055069).

142605331 is a wasteful number, since it uses less digits than its factorization.

142605331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7589.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 142605331 is about 11941.7474014484. The cubic root of 142605331 is about 522.4506257382.

It can be divided in two parts, 14260 and 5331, that added together give a palindrome (19591).

The spelling of 142605331 in words is "one hundred forty-two million, six hundred five thousand, three hundred thirty-one".