40145053 has 4 divisors (see below), whose sum is σ = 43233148. Its totient is φ = 37056960.

The previous prime is 40145023. The next prime is 40145059. The reversal of 40145053 is 35054104.

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 9375844 + 30769209 = 3062^2 + 5547^2 .

It is a cyclic number.

It is not a de Polignac number, because 40145053 - 2⁹ = 40144541 is a prime.

It is a super-2 number, since 2×40145053² = 3223250560745618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40145059) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1544028 + ... + 1544053.

It is an arithmetic number, because the mean of its divisors is an integer number (10808287).

Almost surely, 2^40145053 is an apocalyptic number.

It is an amenable number.

40145053 is a deficient number, since it is larger than the sum of its proper divisors (3088095).

40145053 is a wasteful number, since it uses less digits than its factorization.

40145053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088094.

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

The square root of 40145053 is about 6336.0123895081. The cubic root of 40145053 is about 342.4080858728.

Adding to 40145053 its reverse (35054104), we get a palindrome (75199157).

It can be divided in two parts, 401 and 45053, that added together give a palindrome (45454).

The spelling of 40145053 in words is "forty million, one hundred forty-five thousand, fifty-three".