140619449 has 2 divisors, whose sum is σ = 140619450. Its totient is φ = 140619448.

The previous prime is 140619439. The next prime is 140619509. The reversal of 140619449 is 944916041.

140619449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132250000 + 8369449 = 11500^2 + 2893^2 .

It is a cyclic number.

It is not a de Polignac number, because 140619449 - 2⁴ = 140619433 is a prime.

It is not a weakly prime, because it can be changed into another prime (140619419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70309724 + 70309725.

It is an arithmetic number, because the mean of its divisors is an integer number (70309725).

Almost surely, 2^140619449 is an apocalyptic number.

It is an amenable number.

140619449 is a deficient number, since it is larger than the sum of its proper divisors (1).

140619449 is an equidigital number, since it uses as much as digits as its factorization.

140619449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 140619449 is about 11858.3071726111. The cubic root of 140619449 is about 520.0141132757.

The spelling of 140619449 in words is "one hundred forty million, six hundred nineteen thousand, four hundred forty-nine".