172294149547 has 8 divisors (see below), whose sum is σ = 185550840944. Its totient is φ = 159037928928.

The previous prime is 172294149523. The next prime is 172294149553. The reversal of 172294149547 is 745941492271.

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-172294149547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172294149047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141228 + ... + 1283350.

It is an arithmetic number, because the mean of its divisors is an integer number (23193855118).

Almost surely, 2^172294149547 is an apocalyptic number.

172294149547 is a deficient number, since it is larger than the sum of its proper divisors (13256691397).

172294149547 is a wasteful number, since it uses less digits than its factorization.

172294149547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235389.

The product of its digits is 5080320, while the sum is 55.

The spelling of 172294149547 in words is "one hundred seventy-two billion, two hundred ninety-four million, one hundred forty-nine thousand, five hundred forty-seven".