140431412 has 12 divisors (see below), whose sum is σ = 268096416. Its totient is φ = 63832440.

The previous prime is 140431411. The next prime is 140431429. The reversal of 140431412 is 214134041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140431411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1595768 + ... + 1595855.

It is an arithmetic number, because the mean of its divisors is an integer number (22341368).

Almost surely, 2^140431412 is an apocalyptic number.

It is an amenable number.

140431412 is a deficient number, since it is larger than the sum of its proper divisors (127665004).

140431412 is a wasteful number, since it uses less digits than its factorization.

140431412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191638 (or 3191636 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 140431412 is about 11850.3760277892. The cubic root of 140431412 is about 519.7822214293.

Adding to 140431412 its reverse (214134041), we get a palindrome (354565453).

The spelling of 140431412 in words is "one hundred forty million, four hundred thirty-one thousand, four hundred twelve".