140633613 has 12 divisors (see below), whose sum is σ = 203240700. Its totient is φ = 93708096.

The previous prime is 140633599. The next prime is 140633621. The reversal of 140633613 is 316336041.

140633613 is a `hidden beast` number, since 1 + 40 + 6 + 3 + 3 + 613 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18818244 + 121815369 = 4338^2 + 11037^2 .

It is not a de Polignac number, because 140633613 - 2⁸ = 140633357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140633663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30163 + ... + 34511.

It is an arithmetic number, because the mean of its divisors is an integer number (16936725).

Almost surely, 2^140633613 is an apocalyptic number.

It is an amenable number.

140633613 is a deficient number, since it is larger than the sum of its proper divisors (62607087).

140633613 is a wasteful number, since it uses less digits than its factorization.

140633613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7948 (or 7945 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 140633613 is about 11858.9043760374. The cubic root of 140633613 is about 520.0315722941.

Adding to 140633613 its reverse (316336041), we get a palindrome (456969654).

It can be divided in two parts, 140633 and 613, that added together give a triangular number (141246 = T₅₃₁).

The spelling of 140633613 in words is "one hundred forty million, six hundred thirty-three thousand, six hundred thirteen".