142500405 has 16 divisors (see below), whose sum is σ = 228813120. Its totient is φ = 75729408.

The previous prime is 142500401. The next prime is 142500419. The reversal of 142500405 is 504005241.

142500405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142500405 - 2² = 142500401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142500401) 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, 12540 + ... + 21029.

It is an arithmetic number, because the mean of its divisors is an integer number (14300820).

Almost surely, 2^142500405 is an apocalyptic number.

142500405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142500405 is a deficient number, since it is larger than the sum of its proper divisors (86312715).

142500405 is a wasteful number, since it uses less digits than its factorization.

142500405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33860.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 142500405 is about 11937.3533498846. The cubic root of 142500405 is about 522.3224582420.

Adding to 142500405 its reverse (504005241), we get a palindrome (646505646).

The spelling of 142500405 in words is "one hundred forty-two million, five hundred thousand, four hundred five".