142213402 has 8 divisors (see below), whose sum is σ = 214855200. Its totient is φ = 70595004.

The previous prime is 142213369. The next prime is 142213403. The reversal of 142213402 is 204312241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 142213402.

It is not an unprimeable number, because it can be changed into a prime (142213403) 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, 255502 + ... + 256057.

It is an arithmetic number, because the mean of its divisors is an integer number (26856900).

Almost surely, 2^142213402 is an apocalyptic number.

142213402 is a deficient number, since it is larger than the sum of its proper divisors (72641798).

142213402 is a wasteful number, since it uses less digits than its factorization.

142213402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511700.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142213402 is about 11925.3260752065. The cubic root of 142213402 is about 521.9715613070.

Adding to 142213402 its reverse (204312241), we get a palindrome (346525643).

The spelling of 142213402 in words is "one hundred forty-two million, two hundred thirteen thousand, four hundred two".