41161557 has 4 divisors (see below), whose sum is σ = 54882080. Its totient is φ = 27441036.

The previous prime is 41161553. The next prime is 41161567. The reversal of 41161557 is 75516114.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 41161557 - 2² = 41161553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41161553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6860257 + ... + 6860262.

It is an arithmetic number, because the mean of its divisors is an integer number (13720520).

Almost surely, 2^41161557 is an apocalyptic number.

It is an amenable number.

41161557 is a deficient number, since it is larger than the sum of its proper divisors (13720523).

41161557 is a wasteful number, since it uses less digits than its factorization.

41161557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13720522.

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

The square root of 41161557 is about 6415.7273165246. The cubic root of 41161557 is about 345.2740439706.

The spelling of 41161557 in words is "forty-one million, one hundred sixty-one thousand, five hundred fifty-seven".