140070905 has 16 divisors (see below), whose sum is σ = 191664144. Its totient is φ = 97351680.

The previous prime is 140070893. The next prime is 140070919. The reversal of 140070905 is 509070041.

It can be written as a sum of positive squares in 8 ways, for example, as 9265936 + 130804969 = 3044^2 + 11437^2 .

It is not a de Polignac number, because 140070905 - 2¹² = 140066809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62276 + ... + 64485.

It is an arithmetic number, because the mean of its divisors is an integer number (11979009).

Almost surely, 2^140070905 is an apocalyptic number.

It is an amenable number.

140070905 is a deficient number, since it is larger than the sum of its proper divisors (51593239).

140070905 is a wasteful number, since it uses less digits than its factorization.

140070905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126796.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 140070905 is about 11835.1554700393. The cubic root of 140070905 is about 519.3370558175.

The spelling of 140070905 in words is "one hundred forty million, seventy thousand, nine hundred five".