1041557891 has 8 divisors (see below), whose sum is σ = 1163958768. Its totient is φ = 923776000.

The previous prime is 1041557879. The next prime is 1041557899. The reversal of 1041557891 is 1987551401.

It is a happy number.

1041557891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1041557891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1041557899) 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, 1154270 + ... + 1155171.

It is an arithmetic number, because the mean of its divisors is an integer number (145494846).

Almost surely, 2^1041557891 is an apocalyptic number.

1041557891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1041557891 is a deficient number, since it is larger than the sum of its proper divisors (122400877).

1041557891 is a wasteful number, since it uses less digits than its factorization.

1041557891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309493.

The product of its (nonzero) digits is 50400, while the sum is 41.

The square root of 1041557891 is about 32273.1760290183. The cubic root of 1041557891 is about 1013.6650462699.

The spelling of 1041557891 in words is "one billion, forty-one million, five hundred fifty-seven thousand, eight hundred ninety-one".