40012141 has 16 divisors (see below), whose sum is σ = 44876160. Its totient is φ = 35421120.

The previous prime is 40012139. The next prime is 40012153. The reversal of 40012141 is 14121004.

It is a cyclic number.

It is not a de Polignac number, because 40012141 - 2¹ = 40012139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40012171) 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, 79296 + ... + 79798.

It is an arithmetic number, because the mean of its divisors is an integer number (2804760).

Almost surely, 2^40012141 is an apocalyptic number.

It is an amenable number.

40012141 is a deficient number, since it is larger than the sum of its proper divisors (4864019).

40012141 is a wasteful number, since it uses less digits than its factorization.

40012141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 40012141 is about 6325.5150778415. The cubic root of 40012141 is about 342.0297871984.

Adding to 40012141 its reverse (14121004), we get a palindrome (54133145).

The spelling of 40012141 in words is "forty million, twelve thousand, one hundred forty-one".