142840965 has 16 divisors (see below), whose sum is σ = 228811968. Its totient is φ = 76093056.

The previous prime is 142840961. The next prime is 142840991. The reversal of 142840965 is 569048241.

It is not a de Polignac number, because 142840965 - 2² = 142840961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142840961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8974 + ... + 19136.

It is an arithmetic number, because the mean of its divisors is an integer number (14300748).

Almost surely, 2^142840965 is an apocalyptic number.

142840965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142840965 is a deficient number, since it is larger than the sum of its proper divisors (85971003).

142840965 is a wasteful number, since it uses less digits than its factorization.

142840965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11108.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 142840965 is about 11951.6093058634. The cubic root of 142840965 is about 522.7382245881.

The spelling of 142840965 in words is "one hundred forty-two million, eight hundred forty thousand, nine hundred sixty-five".