172295540 has 12 divisors (see below), whose sum is σ = 361820676. Its totient is φ = 68918208.

The previous prime is 172295533. The next prime is 172295579. The reversal of 172295540 is 45592271.

It can be written as a sum of positive squares in 2 ways, for example, as 102171664 + 70123876 = 10108^2 + 8374^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 172295540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4307369 + ... + 4307408.

It is an arithmetic number, because the mean of its divisors is an integer number (30151723).

Almost surely, 2^172295540 is an apocalyptic number.

172295540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172295540 is an abundant number, since it is smaller than the sum of its proper divisors (189525136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172295540 is a wasteful number, since it uses less digits than its factorization.

172295540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8614786 (or 8614784 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 172295540 is about 13126.1395695764. The cubic root of 172295540 is about 556.4481187980.

The spelling of 172295540 in words is "one hundred seventy-two million, two hundred ninety-five thousand, five hundred forty".