172948461 has 32 divisors (see below), whose sum is σ = 270037248. Its totient is φ = 96422400.

The previous prime is 172948441. The next prime is 172948499. The reversal of 172948461 is 164849271.

It is not a de Polignac number, because 172948461 - 2⁷ = 172948333 is a prime.

It is a super-2 number, since 2×172948461² = 59822340324537042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172948441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154275 + ... + 155391.

It is an arithmetic number, because the mean of its divisors is an integer number (8438664).

Almost surely, 2^172948461 is an apocalyptic number.

It is an amenable number.

172948461 is a deficient number, since it is larger than the sum of its proper divisors (97088787).

172948461 is a wasteful number, since it uses less digits than its factorization.

172948461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301.

The product of its digits is 96768, while the sum is 42.

The square root of 172948461 is about 13150.9870732200. The cubic root of 172948461 is about 557.1501270865.

The spelling of 172948461 in words is "one hundred seventy-two million, nine hundred forty-eight thousand, four hundred sixty-one".