142123604 has 24 divisors (see below), whose sum is σ = 300968640. Its totient is φ = 57326976.

The previous prime is 142123573. The next prime is 142123609. The reversal of 142123604 is 406321241.

It is a self number, because there is not a number n which added to its sum of digits gives 142123604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142123609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148814 + ... + 149765.

It is an arithmetic number, because the mean of its divisors is an integer number (12540360).

Almost surely, 2^142123604 is an apocalyptic number.

142123604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142123604 is an abundant number, since it is smaller than the sum of its proper divisors (158845036).

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

142123604 is a wasteful number, since it uses less digits than its factorization.

142123604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298607 (or 298605 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 142123604 is about 11921.5604683280. The cubic root of 142123604 is about 521.8616751065.

Adding to 142123604 its reverse (406321241), we get a palindrome (548444845).

The spelling of 142123604 in words is "one hundred forty-two million, one hundred twenty-three thousand, six hundred four".