140245605 has 48 divisors (see below), whose sum is σ = 255415680. Its totient is φ = 71051904.

The previous prime is 140245601. The next prime is 140245621. The reversal of 140245605 is 506542041.

140245605 is a `hidden beast` number, since 14 + 0 + 2 + 45 + 605 = 666.

It is not a de Polignac number, because 140245605 - 2² = 140245601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140245601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184887 + ... + 185643.

It is an arithmetic number, because the mean of its divisors is an integer number (5321160).

Almost surely, 2^140245605 is an apocalyptic number.

140245605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140245605 is a deficient number, since it is larger than the sum of its proper divisors (115170075).

140245605 is a wasteful number, since it uses less digits than its factorization.

140245605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 140245605 is about 11842.5337238279. The cubic root of 140245605 is about 519.5528762509.

Adding to 140245605 its reverse (506542041), we get a palindrome (646787646).

The spelling of 140245605 in words is "one hundred forty million, two hundred forty-five thousand, six hundred five".