40145255 has 8 divisors (see below), whose sum is σ = 48834672. Its totient is φ = 31675968.

The previous prime is 40145249. The next prime is 40145299. The reversal of 40145255 is 55254104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40145255 - 2¹² = 40141159 is a prime.

It is a super-2 number, since 2×40145255² = 3223282998030050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54629 + ... + 55358.

It is an arithmetic number, because the mean of its divisors is an integer number (6104334).

Almost surely, 2^40145255 is an apocalyptic number.

40145255 is a deficient number, since it is larger than the sum of its proper divisors (8689417).

40145255 is a wasteful number, since it uses less digits than its factorization.

40145255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110065.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 40145255 is about 6336.0283301134. The cubic root of 40145255 is about 342.4086601762.

Adding to 40145255 its reverse (55254104), we get a palindrome (95399359).

The spelling of 40145255 in words is "forty million, one hundred forty-five thousand, two hundred fifty-five".