140323412 has 6 divisors (see below), whose sum is σ = 245565978. Its totient is φ = 70161704.

The previous prime is 140323399. The next prime is 140323427. The reversal of 140323412 is 214323041.

It can be written as a sum of positive squares in only one way, i.e., 112487236 + 27836176 = 10606^2 + 5276^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17540423 + ... + 17540430.

It is an arithmetic number, because the mean of its divisors is an integer number (40927663).

Almost surely, 2^140323412 is an apocalyptic number.

It is an amenable number.

140323412 is a deficient number, since it is larger than the sum of its proper divisors (105242566).

140323412 is a wasteful number, since it uses less digits than its factorization.

140323412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35080857 (or 35080855 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 140323412 is about 11845.8183339101. The cubic root of 140323412 is about 519.6489395754.

Adding to 140323412 its reverse (214323041), we get a palindrome (354646453).

The spelling of 140323412 in words is "one hundred forty million, three hundred twenty-three thousand, four hundred twelve".