40243225135015 has 32 divisors (see below), whose sum is σ = 55478747520000. Its totient is φ = 27451388498688.

The previous prime is 40243225134997. The next prime is 40243225135039. The reversal of 40243225135015 is 51053152234204.

It is a happy number.

It is not a de Polignac number, because 40243225135015 - 2⁷ = 40243225134887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35726076 + ... + 36835294.

It is an arithmetic number, because the mean of its divisors is an integer number (1733710860000).

Almost surely, 2^{40243225135015} is an apocalyptic number.

40243225135015 is a deficient number, since it is larger than the sum of its proper divisors (15235522384985).

40243225135015 is a wasteful number, since it uses less digits than its factorization.

40243225135015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114639.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 40243225135015 its reverse (51053152234204), we get a palindrome (91296377369219).

The spelling of 40243225135015 in words is "forty trillion, two hundred forty-three billion, two hundred twenty-five million, one hundred thirty-five thousand, fifteen".