140143432 has 32 divisors (see below), whose sum is σ = 308710080. Its totient is φ = 58800960.

The previous prime is 140143403. The next prime is 140143463. The reversal of 140143432 is 234341041.

It is a super-3 number, since 3×140143432³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60108 + ... + 62395.

It is an arithmetic number, because the mean of its divisors is an integer number (9647190).

Almost surely, 2^140143432 is an apocalyptic number.

It is an amenable number.

140143432 is an abundant number, since it is smaller than the sum of its proper divisors (168566648).

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

140143432 is a wasteful number, since it uses less digits than its factorization.

140143432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122533 (or 122529 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 140143432 is about 11838.2191228242. The cubic root of 140143432 is about 519.4266758080.

Adding to 140143432 its reverse (234341041), we get a palindrome (374484473).

The spelling of 140143432 in words is "one hundred forty million, one hundred forty-three thousand, four hundred thirty-two".