140143407 has 16 divisors (see below), whose sum is σ = 192686208. Its totient is φ = 90548640.

The previous prime is 140143403. The next prime is 140143463. The reversal of 140143407 is 704341041.

It is not a de Polignac number, because 140143407 - 2² = 140143403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140143403) 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, 12753 + ... + 21045.

It is an arithmetic number, because the mean of its divisors is an integer number (12042888).

Almost surely, 2^140143407 is an apocalyptic number.

140143407 is a deficient number, since it is larger than the sum of its proper divisors (52542801).

140143407 is a wasteful number, since it uses less digits than its factorization.

140143407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 140143407 is about 11838.2180669221. The cubic root of 140143407 is about 519.4266449214.

Adding to 140143407 its reverse (704341041), we get a palindrome (844484448).

The spelling of 140143407 in words is "one hundred forty million, one hundred forty-three thousand, four hundred seven".