142203215 has 32 divisors (see below), whose sum is σ = 225275904. Its totient is φ = 83427840.

The previous prime is 142203209. The next prime is 142203223. The reversal of 142203215 is 512302241.

It is not a de Polignac number, because 142203215 - 2⁶ = 142203151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4319 + ... + 17408.

It is an arithmetic number, because the mean of its divisors is an integer number (7039872).

Almost surely, 2^142203215 is an apocalyptic number.

142203215 is a deficient number, since it is larger than the sum of its proper divisors (83072689).

142203215 is a wasteful number, since it uses less digits than its factorization.

142203215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21767.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 142203215 is about 11924.8989513538. The cubic root of 142203215 is about 521.9590977576.

Adding to 142203215 its reverse (512302241), we get a palindrome (654505456).

The spelling of 142203215 in words is "one hundred forty-two million, two hundred three thousand, two hundred fifteen".