142336407 has 16 divisors (see below), whose sum is σ = 200465408. Its totient is φ = 89691840.

The previous prime is 142336399. The next prime is 142336459. The reversal of 142336407 is 704633241.

It is not a de Polignac number, because 142336407 - 2³ = 142336399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142336477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13798 + ... + 21795.

It is an arithmetic number, because the mean of its divisors is an integer number (12529088).

Almost surely, 2^142336407 is an apocalyptic number.

142336407 is a deficient number, since it is larger than the sum of its proper divisors (58129001).

142336407 is a wasteful number, since it uses less digits than its factorization.

142336407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35670.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 142336407 is about 11930.4822618367. The cubic root of 142336407 is about 522.1220080039.

Adding to 142336407 its reverse (704633241), we get a palindrome (846969648).

The spelling of 142336407 in words is "one hundred forty-two million, three hundred thirty-six thousand, four hundred seven".