140210399 has 4 divisors (see below), whose sum is σ = 160240464. Its totient is φ = 120180336.

The previous prime is 140210393. The next prime is 140210419. The reversal of 140210399 is 993012041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140210399 - 2¹² = 140206303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140210393) 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, 10015022 + ... + 10015035.

It is an arithmetic number, because the mean of its divisors is an integer number (40060116).

Almost surely, 2^140210399 is an apocalyptic number.

140210399 is a deficient number, since it is larger than the sum of its proper divisors (20030065).

140210399 is an equidigital number, since it uses as much as digits as its factorization.

140210399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20030064.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 140210399 is about 11841.0472087565. The cubic root of 140210399 is about 519.5093979797.

The spelling of 140210399 in words is "one hundred forty million, two hundred ten thousand, three hundred ninety-nine".