91825141 has 8 divisors (see below), whose sum is σ = 93119040. Its totient is φ = 90535872.

The previous prime is 91825121. The next prime is 91825159. The reversal of 91825141 is 14152819.

91825141 = 479² + 480² + ... + 727².

It is a happy number.

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 91825141 - 2¹⁷ = 91694069 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 (91825121) 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, 60925 + ... + 62413.

It is an arithmetic number, because the mean of its divisors is an integer number (11639880).

Almost surely, 2^91825141 is an apocalyptic number.

It is an amenable number.

91825141 is a deficient number, since it is larger than the sum of its proper divisors (1293899).

91825141 is a wasteful number, since it uses less digits than its factorization.

91825141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315.

The product of its digits is 2880, while the sum is 31.

The square root of 91825141 is about 9582.5435558624. The cubic root of 91825141 is about 451.1495563509.

The spelling of 91825141 in words is "ninety-one million, eight hundred twenty-five thousand, one hundred forty-one".