142617903 has 8 divisors (see below), whose sum is σ = 190647600. Its totient is φ = 94833408.

The previous prime is 142617841. The next prime is 142617907. The reversal of 142617903 is 309716241.

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

It is a de Polignac number, because none of the positive numbers 2^k-142617903 is a prime.

It is a super-2 number, since 2×142617903² = 40679732512234818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142617907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59938 + ... + 62271.

It is an arithmetic number, because the mean of its divisors is an integer number (23830950).

Almost surely, 2^142617903 is an apocalyptic number.

142617903 is a deficient number, since it is larger than the sum of its proper divisors (48029697).

142617903 is a wasteful number, since it uses less digits than its factorization.

142617903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122601.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 142617903 is about 11942.2737784728. The cubic root of 142617903 is about 522.4659782645.

The spelling of 142617903 in words is "one hundred forty-two million, six hundred seventeen thousand, nine hundred three".