136403142 has 16 divisors (see below), whose sum is σ = 273184320. Its totient is φ = 45404712.

The previous prime is 136403129. The next prime is 136403149. The reversal of 136403142 is 241304631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136403149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10948 + ... + 19815.

It is an arithmetic number, because the mean of its divisors is an integer number (17074020).

Almost surely, 2^136403142 is an apocalyptic number.

136403142 is an abundant number, since it is smaller than the sum of its proper divisors (136781178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136403142 is a wasteful number, since it uses less digits than its factorization.

136403142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31507.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 136403142 is about 11679.1755702190. The cubic root of 136403142 is about 514.7639500127.

Adding to 136403142 its reverse (241304631), we get a palindrome (377707773).

The spelling of 136403142 in words is "one hundred thirty-six million, four hundred three thousand, one hundred forty-two".