142100402 has 8 divisors (see below), whose sum is σ = 213203712. Its totient is φ = 71032500.

The previous prime is 142100393. The next prime is 142100407. The reversal of 142100402 is 204001241.

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

It is not an unprimeable number, because it can be changed into a prime (142100407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6527 + ... + 18077.

It is an arithmetic number, because the mean of its divisors is an integer number (26650464).

Almost surely, 2^142100402 is an apocalyptic number.

142100402 is a deficient number, since it is larger than the sum of its proper divisors (71103310).

142100402 is a wasteful number, since it uses less digits than its factorization.

142100402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17704.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 142100402 is about 11920.5873177457. The cubic root of 142100402 is about 521.8332751945.

Adding to 142100402 its reverse (204001241), we get a palindrome (346101643).

The spelling of 142100402 in words is "one hundred forty-two million, one hundred thousand, four hundred two".