36172345 has 24 divisors (see below), whose sum is σ = 50532552. Its totient is φ = 24752640.

The previous prime is 36172343. The next prime is 36172349. The reversal of 36172345 is 54327163.

It can be written as a sum of positive squares in 4 ways, for example, as 17197609 + 18974736 = 4147^2 + 4356^2 .

It is not a de Polignac number, because 36172345 - 2¹ = 36172343 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36172343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8527 + ... + 12043.

It is an arithmetic number, because the mean of its divisors is an integer number (2105523).

Almost surely, 2^36172345 is an apocalyptic number.

It is an amenable number.

36172345 is a deficient number, since it is larger than the sum of its proper divisors (14360207).

36172345 is a wasteful number, since it uses less digits than its factorization.

36172345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561 (or 3550 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 36172345 is about 6014.3449352361. The cubic root of 36172345 is about 330.7188035411.

The spelling of 36172345 in words is "thirty-six million, one hundred seventy-two thousand, three hundred forty-five".