85241157 has 4 divisors (see below), whose sum is σ = 113654880. Its totient is φ = 56827436.

The previous prime is 85241137. The next prime is 85241171. The reversal of 85241157 is 75114258.

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 a cyclic number.

It is not a de Polignac number, because 85241157 - 2⁸ = 85240901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85241137) 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, 14206857 + ... + 14206862.

It is an arithmetic number, because the mean of its divisors is an integer number (28413720).

Almost surely, 2^85241157 is an apocalyptic number.

It is an amenable number.

85241157 is a deficient number, since it is larger than the sum of its proper divisors (28413723).

85241157 is a wasteful number, since it uses less digits than its factorization.

85241157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28413722.

The product of its digits is 11200, while the sum is 33.

The square root of 85241157 is about 9232.6137685923. The cubic root of 85241157 is about 440.0983888102.

The spelling of 85241157 in words is "eighty-five million, two hundred forty-one thousand, one hundred fifty-seven".