142233013 has 4 divisors (see below), whose sum is σ = 153174028. Its totient is φ = 131292000.

The previous prime is 142232983. The next prime is 142233043. The reversal of 142233013 is 310332241.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (142232983) and next prime (142233043).

It can be written as a sum of positive squares in 2 ways, for example, as 88679889 + 53553124 = 9417^2 + 7318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142233013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142233043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5470488 + ... + 5470513.

It is an arithmetic number, because the mean of its divisors is an integer number (38293507).

Almost surely, 2^142233013 is an apocalyptic number.

142233013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142233013 is a deficient number, since it is larger than the sum of its proper divisors (10941015).

142233013 is a wasteful number, since it uses less digits than its factorization.

142233013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10941014.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 142233013 is about 11926.1482885297. The cubic root of 142233013 is about 521.9955532178.

Adding to 142233013 its reverse (310332241), we get a palindrome (452565254).

The spelling of 142233013 in words is "one hundred forty-two million, two hundred thirty-three thousand, thirteen".