172340641 has 8 divisors (see below), whose sum is σ = 188424864. Its totient is φ = 156325920.

The previous prime is 172340599. The next prime is 172340647. The reversal of 172340641 is 146043271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172340641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172340647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12115 + ... + 22168.

It is an arithmetic number, because the mean of its divisors is an integer number (23553108).

Almost surely, 2^172340641 is an apocalyptic number.

172340641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

172340641 is a deficient number, since it is larger than the sum of its proper divisors (16084223).

172340641 is a wasteful number, since it uses less digits than its factorization.

172340641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34751.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 172340641 is about 13127.8574413344. The cubic root of 172340641 is about 556.4966675051.

The spelling of 172340641 in words is "one hundred seventy-two million, three hundred forty thousand, six hundred forty-one".