172140613 has 16 divisors (see below), whose sum is σ = 183586816. Its totient is φ = 161118720.

The previous prime is 172140571. The next prime is 172140629. The reversal of 172140613 is 316041271.

It is not a de Polignac number, because 172140613 - 2¹³ = 172132421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172140313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255445 + ... + 256117.

It is an arithmetic number, because the mean of its divisors is an integer number (11474176).

Almost surely, 2^172140613 is an apocalyptic number.

It is an amenable number.

172140613 is a deficient number, since it is larger than the sum of its proper divisors (11446203).

172140613 is a wasteful number, since it uses less digits than its factorization.

172140613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 172140613 is about 13120.2367737781. The cubic root of 172140613 is about 556.2812839704.

Adding to 172140613 its reverse (316041271), we get a palindrome (488181884).

The spelling of 172140613 in words is "one hundred seventy-two million, one hundred forty thousand, six hundred thirteen".