40172701 has 2 divisors, whose sum is σ = 40172702. Its totient is φ = 40172700.

The previous prime is 40172677. The next prime is 40172749. The reversal of 40172701 is 10727104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29964676 + 10208025 = 5474^2 + 3195^2 .

It is a cyclic number.

It is not a de Polignac number, because 40172701 - 2⁹ = 40172189 is a prime.

It is a super-2 number, since 2×40172701² = 3227691811270802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40172771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20086350 + 20086351.

It is an arithmetic number, because the mean of its divisors is an integer number (20086351).

Almost surely, 2^40172701 is an apocalyptic number.

It is an amenable number.

40172701 is a deficient number, since it is larger than the sum of its proper divisors (1).

40172701 is an equidigital number, since it uses as much as digits as its factorization.

40172701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 40172701 is about 6338.1938278977. The cubic root of 40172701 is about 342.4866736073.

Adding to 40172701 its reverse (10727104), we get a palindrome (50899805).

The spelling of 40172701 in words is "forty million, one hundred seventy-two thousand, seven hundred one".