142213015 has 32 divisors (see below), whose sum is σ = 201697920. Its totient is φ = 94224384.

The previous prime is 142212991. The next prime is 142213031. The reversal of 142213015 is 510312241.

It is a cyclic number.

It is not a de Polignac number, because 142213015 - 2²¹ = 140115863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142212983 and 142213001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249651 + ... + 250219.

It is an arithmetic number, because the mean of its divisors is an integer number (6303060).

Almost surely, 2^142213015 is an apocalyptic number.

142213015 is a deficient number, since it is larger than the sum of its proper divisors (59484905).

142213015 is a wasteful number, since it uses less digits than its factorization.

142213015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 142213015 is about 11925.3098492240. The cubic root of 142213015 is about 521.9710878327.

Adding to 142213015 its reverse (510312241), we get a palindrome (652525256).

The spelling of 142213015 in words is "one hundred forty-two million, two hundred thirteen thousand, fifteen".