142213013 has 8 divisors (see below), whose sum is σ = 147315000. Its totient is φ = 137124288.

The previous prime is 142212991. The next prime is 142213031. The reversal of 142213013 is 310312241.

It can be written as a sum of positive squares in 4 ways, for example, as 5276209 + 136936804 = 2297^2 + 11702^2 .

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 142213013 - 2¹⁴ = 142196629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142212982 and 142213000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142213033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21863 + ... + 27611.

It is an arithmetic number, because the mean of its divisors is an integer number (18414375).

Almost surely, 2^142213013 is an apocalyptic number.

It is an amenable number.

142213013 is a deficient number, since it is larger than the sum of its proper divisors (5101987).

142213013 is an equidigital number, since it uses as much as digits as its factorization.

142213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6631.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 142213013 is about 11925.3097653688. The cubic root of 142213013 is about 521.9710853858.

Adding to 142213013 its reverse (310312241), we get a palindrome (452525254).

It can be divided in two parts, 1422 and 13013, that multiplied together give a triangular number (18504486 = T₆₀₈₃).

The spelling of 142213013 in words is "one hundred forty-two million, two hundred thirteen thousand, thirteen".