32172245 has 32 divisors (see below), whose sum is σ = 47174400. Its totient is φ = 20560896.

The previous prime is 32172233. The next prime is 32172247. The reversal of 32172245 is 54227123.

It is a cyclic number.

It is not a de Polignac number, because 32172245 - 2¹⁰ = 32171221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32172247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82511 + ... + 82899.

It is an arithmetic number, because the mean of its divisors is an integer number (1474200).

Almost surely, 2^32172245 is an apocalyptic number.

32172245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

32172245 is a deficient number, since it is larger than the sum of its proper divisors (15002155).

32172245 is a wasteful number, since it uses less digits than its factorization.

32172245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557.

The product of its digits is 3360, while the sum is 26.

The square root of 32172245 is about 5672.0582683890. The cubic root of 32172245 is about 318.0488203463.

Adding to 32172245 its reverse (54227123), we get a palindrome (86399368).

The spelling of 32172245 in words is "thirty-two million, one hundred seventy-two thousand, two hundred forty-five".