140143020 has 48 divisors (see below), whose sum is σ = 401533440. Its totient is φ = 36501696.

The previous prime is 140143007. The next prime is 140143039. The reversal of 140143020 is 20341041.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24580 + ... + 29739.

It is an arithmetic number, because the mean of its divisors is an integer number (8365280).

Almost surely, 2^140143020 is an apocalyptic number.

140143020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140143020 is an abundant number, since it is smaller than the sum of its proper divisors (261390420).

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

140143020 is a wasteful number, since it uses less digits than its factorization.

140143020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54374 (or 54372 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 140143020 is about 11838.2017215454. The cubic root of 140143020 is about 519.4261667962.

Adding to 140143020 its reverse (20341041), we get a palindrome (160484061).

The spelling of 140143020 in words is "one hundred forty million, one hundred forty-three thousand, twenty".