142747432 has 32 divisors (see below), whose sum is σ = 273772800. Its totient is φ = 69755904.

The previous prime is 142747387. The next prime is 142747439. The reversal of 142747432 is 234747241.

It is not an unprimeable number, because it can be changed into a prime (142747439) 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, 90313 + ... + 91879.

It is an arithmetic number, because the mean of its divisors is an integer number (8555400).

Almost surely, 2^142747432 is an apocalyptic number.

It is an amenable number.

142747432 is a deficient number, since it is larger than the sum of its proper divisors (131025368).

142747432 is a wasteful number, since it uses less digits than its factorization.

142747432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825 (or 1821 counting only the distinct ones).

The product of its digits is 37632, while the sum is 34.

The square root of 142747432 is about 11947.6956774099. The cubic root of 142747432 is about 522.6241024474.

The spelling of 142747432 in words is "one hundred forty-two million, seven hundred forty-seven thousand, four hundred thirty-two".