140472705 has 32 divisors (see below), whose sum is σ = 229219200. Its totient is φ = 73446912.

The previous prime is 140472679. The next prime is 140472797. The reversal of 140472705 is 507274041.

It is not a de Polignac number, because 140472705 - 2¹² = 140468609 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185187 + ... + 185943.

It is an arithmetic number, because the mean of its divisors is an integer number (7163100).

Almost surely, 2^140472705 is an apocalyptic number.

140472705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140472705 is a deficient number, since it is larger than the sum of its proper divisors (88746495).

140472705 is a wasteful number, since it uses less digits than its factorization.

140472705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 140472705 is about 11852.1181651214. The cubic root of 140472705 is about 519.8331627004.

The spelling of 140472705 in words is "one hundred forty million, four hundred seventy-two thousand, seven hundred five".