140097405 has 64 divisors (see below), whose sum is σ = 267724800. Its totient is φ = 61205760.

The previous prime is 140097379. The next prime is 140097427. The reversal of 140097405 is 504790041.

It is a happy number.

It is not a de Polignac number, because 140097405 - 2⁶ = 140097341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 423090 + ... + 423420.

It is an arithmetic number, because the mean of its divisors is an integer number (4183200).

Almost surely, 2^140097405 is an apocalyptic number.

140097405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140097405 is a deficient number, since it is larger than the sum of its proper divisors (127627395).

140097405 is a wasteful number, since it uses less digits than its factorization.

140097405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 140097405 is about 11836.2749630110. The cubic root of 140097405 is about 519.3698048603.

The spelling of 140097405 in words is "one hundred forty million, ninety-seven thousand, four hundred five".