41157561 has 8 divisors (see below), whose sum is σ = 58104864. Its totient is φ = 25824320.

The previous prime is 41157547. The next prime is 41157577. The reversal of 41157561 is 16575114.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41157561 - 2¹⁹ = 40633273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (41157541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403455 + ... + 403556.

It is an arithmetic number, because the mean of its divisors is an integer number (7263108).

Almost surely, 2^41157561 is an apocalyptic number.

It is an amenable number.

41157561 is a deficient number, since it is larger than the sum of its proper divisors (16947303).

41157561 is a wasteful number, since it uses less digits than its factorization.

41157561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807031.

The product of its digits is 4200, while the sum is 30.

The square root of 41157561 is about 6415.4158867528. The cubic root of 41157561 is about 345.2628704402.

The spelling of 41157561 in words is "forty-one million, one hundred fifty-seven thousand, five hundred sixty-one".