40141521 has 32 divisors (see below), whose sum is σ = 68433920. Its totient is φ = 22779792.

The previous prime is 40141513. The next prime is 40141523. The reversal of 40141521 is 12514104.

40141521 is a `hidden beast` number, since 4 + 0 + 141 + 521 = 666.

It is not a de Polignac number, because 40141521 - 2³ = 40141513 is a prime.

It is a super-2 number, since 2×40141521² = 3222683416386882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40141494 and 40141503.

It is not an unprimeable number, because it can be changed into a prime (40141523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30156 + ... + 31458.

It is an arithmetic number, because the mean of its divisors is an integer number (2138560).

Almost surely, 2^40141521 is an apocalyptic number.

It is an amenable number.

40141521 is a deficient number, since it is larger than the sum of its proper divisors (28292399).

40141521 is a wasteful number, since it uses less digits than its factorization.

40141521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482 (or 1476 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 40141521 is about 6335.7336591748. The cubic root of 40141521 is about 342.3980437818.

Adding to 40141521 its reverse (12514104), we get a palindrome (52655625).

The spelling of 40141521 in words is "forty million, one hundred forty-one thousand, five hundred twenty-one".