40540153 has 4 divisors (see below), whose sum is σ = 40569508. Its totient is φ = 40510800.

The previous prime is 40540147. The next prime is 40540163. The reversal of 40540153 is 35104504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38340864 + 2199289 = 6192^2 + 1483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40540153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40540133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12498 + ... + 15403.

It is an arithmetic number, because the mean of its divisors is an integer number (10142377).

Almost surely, 2^40540153 is an apocalyptic number.

It is an amenable number.

40540153 is a deficient number, since it is larger than the sum of its proper divisors (29355).

40540153 is a wasteful number, since it uses less digits than its factorization.

40540153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29354.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 40540153 is about 6367.1149667648. The cubic root of 40540153 is about 343.5277259250.

Adding to 40540153 its reverse (35104504), we get a palindrome (75644657).

The spelling of 40540153 in words is "forty million, five hundred forty thousand, one hundred fifty-three".