40112523 has 16 divisors (see below), whose sum is σ = 64828800. Its totient is φ = 24310440.

The previous prime is 40112521. The next prime is 40112533. The reversal of 40112523 is 32521104.

It is not a de Polignac number, because 40112523 - 2¹ = 40112521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40112496 and 40112505.

It is not an unprimeable number, because it can be changed into a prime (40112521) 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, 67233 + ... + 67826.

It is an arithmetic number, because the mean of its divisors is an integer number (4051800).

Almost surely, 2^40112523 is an apocalyptic number.

40112523 is a deficient number, since it is larger than the sum of its proper divisors (24716277).

40112523 is a wasteful number, since it uses less digits than its factorization.

40112523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135079 (or 135073 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40112523 is about 6333.4447972648. Note that the first 3 decimals coincide. The cubic root of 40112523 is about 342.3155751389.

Adding to 40112523 its reverse (32521104), we get a palindrome (72633627).

The spelling of 40112523 in words is "forty million, one hundred twelve thousand, five hundred twenty-three".