40136225 has 12 divisors (see below), whose sum is σ = 50614320. Its totient is φ = 31563600.

The previous prime is 40136197. The next prime is 40136233. The reversal of 40136225 is 52263104.

It is not a de Polignac number, because 40136225 - 2¹⁴ = 40119841 is a prime.

It is a super-2 number, since 2×40136225² = 3221833114501250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40136225.

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 11 ways as a sum of consecutive naturals, for example, 12131 + ... + 15080.

It is an arithmetic number, because the mean of its divisors is an integer number (4217860).

Almost surely, 2^40136225 is an apocalyptic number.

It is an amenable number.

40136225 is a deficient number, since it is larger than the sum of its proper divisors (10478095).

40136225 is a wasteful number, since it uses less digits than its factorization.

40136225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27280 (or 27275 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40136225 is about 6335.3156985268. The cubic root of 40136225 is about 342.3829852277.

Adding to 40136225 its reverse (52263104), we get a palindrome (92399329).

The spelling of 40136225 in words is "forty million, one hundred thirty-six thousand, two hundred twenty-five".