142663313 has 8 divisors (see below), whose sum is σ = 157385256. Its totient is φ = 128476800.

The previous prime is 142663253. The next prime is 142663321. The reversal of 142663313 is 313366241.

It can be written as a sum of positive squares in 4 ways, for example, as 25331089 + 117332224 = 5033^2 + 10832^2 .

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 142663313 - 2¹² = 142659217 is a prime.

It is a super-2 number, since 2×142663313² = 40705641752271938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142663373) 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, 133298 + ... + 134363.

It is an arithmetic number, because the mean of its divisors is an integer number (19673157).

Almost surely, 2^142663313 is an apocalyptic number.

142663313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142663313 is a deficient number, since it is larger than the sum of its proper divisors (14721943).

142663313 is a wasteful number, since it uses less digits than its factorization.

142663313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267715.

The product of its digits is 7776, while the sum is 29.

The square root of 142663313 is about 11944.1748563892. The cubic root of 142663313 is about 522.5214239973.

The spelling of 142663313 in words is "one hundred forty-two million, six hundred sixty-three thousand, three hundred thirteen".