40154142523 has 16 divisors (see below), whose sum is σ = 44034503040. Its totient is φ = 36312292800.

The previous prime is 40154142503. The next prime is 40154142527. The reversal of 40154142523 is 32524145104.

It is a cyclic number.

It is not a de Polignac number, because 40154142523 - 2⁹ = 40154142011 is a prime.

It is a super-2 number, since 2×40154142523² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40154142527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6888136 + ... + 6893962.

It is an arithmetic number, because the mean of its divisors is an integer number (2752156440).

Almost surely, 2^40154142523 is an apocalyptic number.

40154142523 is a deficient number, since it is larger than the sum of its proper divisors (3880360517).

40154142523 is a wasteful number, since it uses less digits than its factorization.

40154142523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9018.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 40154142523 its reverse (32524145104), we get a palindrome (72678287627).

The spelling of 40154142523 in words is "forty billion, one hundred fifty-four million, one hundred forty-two thousand, five hundred twenty-three".