40113541 has 24 divisors (see below), whose sum is σ = 47690720. Its totient is φ = 33444576.

The previous prime is 40113511. The next prime is 40113581. The reversal of 40113541 is 14531104.

40113541 = 1444² + 1445² + ... + 1462².

It is not a de Polignac number, because 40113541 - 2⁷ = 40113413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40113511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130510 + ... + 130816.

Almost surely, 2^40113541 is an apocalyptic number.

It is an amenable number.

40113541 is a deficient number, since it is larger than the sum of its proper divisors (7577179).

40113541 is a wasteful number, since it uses less digits than its factorization.

40113541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 40113541 is about 6333.5251637615. The cubic root of 40113541 is about 342.3184709453.

Adding to 40113541 its reverse (14531104), we get a palindrome (54644645).

The spelling of 40113541 in words is "forty million, one hundred thirteen thousand, five hundred forty-one".