40145133015 has 96 divisors (see below), whose sum is σ = 77395683456. Its totient is φ = 19121495040.

The previous prime is 40145133011. The next prime is 40145133031. The reversal of 40145133015 is 51033154104.

It is a happy number.

It is not a de Polignac number, because 40145133015 - 2² = 40145133011 is a prime.

It is a super-3 number, since 3×40145133015³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 40145133015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40145133011) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3912622 + ... + 3922868.

It is an arithmetic number, because the mean of its divisors is an integer number (806205036).

Almost surely, 2^40145133015 is an apocalyptic number.

40145133015 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40145133015 is a deficient number, since it is larger than the sum of its proper divisors (37250550441).

40145133015 is a wasteful number, since it uses less digits than its factorization.

40145133015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10489 (or 10486 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 40145133015 its reverse (51033154104), we get a palindrome (91178287119).

The spelling of 40145133015 in words is "forty billion, one hundred forty-five million, one hundred thirty-three thousand, fifteen".