40205153 has 4 divisors (see below), whose sum is σ = 42570180. Its totient is φ = 37840128.

The previous prime is 40205141. The next prime is 40205177. The reversal of 40205153 is 35150204.

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 16711744 + 23493409 = 4088^2 + 4847^2 .

It is a cyclic number.

It is not a de Polignac number, because 40205153 - 2⁶ = 40205089 is a prime.

It is a super-4 number, since 4×40205153⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (40205183) 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, 1182488 + ... + 1182521.

It is an arithmetic number, because the mean of its divisors is an integer number (10642545).

Almost surely, 2^40205153 is an apocalyptic number.

It is an amenable number.

40205153 is a deficient number, since it is larger than the sum of its proper divisors (2365027).

40205153 is a wasteful number, since it uses less digits than its factorization.

40205153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365026.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 40205153 is about 6340.7533464092. The cubic root of 40205153 is about 342.5788704293.

Adding to 40205153 its reverse (35150204), we get a palindrome (75355357).

The spelling of 40205153 in words is "forty million, two hundred five thousand, one hundred fifty-three".