140641417 has 24 divisors (see below), whose sum is σ = 167822592. Its totient is φ = 117482400.

The previous prime is 140641411. The next prime is 140641429. The reversal of 140641417 is 714146041.

It is a de Polignac number, because none of the positive numbers 2^k-140641417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140641411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 630568 + ... + 630790.

It is an arithmetic number, because the mean of its divisors is an integer number (6992608).

Almost surely, 2^140641417 is an apocalyptic number.

It is an amenable number.

140641417 is a deficient number, since it is larger than the sum of its proper divisors (27181175).

140641417 is a wasteful number, since it uses less digits than its factorization.

140641417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 140641417 is about 11859.2334069281. The cubic root of 140641417 is about 520.0411912636.

Adding to 140641417 its reverse (714146041), we get a palindrome (854787458).

The spelling of 140641417 in words is "one hundred forty million, six hundred forty-one thousand, four hundred seventeen".