142431345 has 32 divisors (see below), whose sum is σ = 289386240. Its totient is φ = 65111040.

The previous prime is 142431343. The next prime is 142431349. The reversal of 142431345 is 543134241.

It is a happy number.

142431345 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 142431345 - 2¹ = 142431343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (142431343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74416 + ... + 76305.

It is an arithmetic number, because the mean of its divisors is an integer number (9043320).

Almost surely, 2^142431345 is an apocalyptic number.

142431345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142431345 is an abundant number, since it is smaller than the sum of its proper divisors (146954895).

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

142431345 is a wasteful number, since it uses less digits than its factorization.

142431345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150742 (or 150736 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 142431345 is about 11934.4603983590. The cubic root of 142431345 is about 522.2380668616.

Adding to 142431345 its reverse (543134241), we get a palindrome (685565586).

The spelling of 142431345 in words is "one hundred forty-two million, four hundred thirty-one thousand, three hundred forty-five".