140344499 has 2 divisors, whose sum is σ = 140344500. Its totient is φ = 140344498.

The previous prime is 140344487. The next prime is 140344549. The reversal of 140344499 is 994443041.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (994443041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140344499 - 2⁴ = 140344483 is a prime.

It is a super-2 number, since 2×140344499² = 39393156799122002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140344439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70172249 + 70172250.

It is an arithmetic number, because the mean of its divisors is an integer number (70172250).

Almost surely, 2^140344499 is an apocalyptic number.

140344499 is a deficient number, since it is larger than the sum of its proper divisors (1).

140344499 is an equidigital number, since it uses as much as digits as its factorization.

140344499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 140344499 is about 11846.7083613973. The cubic root of 140344499 is about 519.6749682287.

The spelling of 140344499 in words is "one hundred forty million, three hundred forty-four thousand, four hundred ninety-nine".