68441157 has 12 divisors (see below), whose sum is σ = 101531820. Its totient is φ = 44394048.

The previous prime is 68441147. The next prime is 68441161. The reversal of 68441157 is 75114486.

It is a happy number.

68441157 is a `hidden beast` number, since 68 + 441 + 157 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 64496961 + 3944196 = 8031^2 + 1986^2 .

It is not a de Polignac number, because 68441157 - 2¹¹ = 68439109 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68441117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102432 + ... + 103097.

It is an arithmetic number, because the mean of its divisors is an integer number (8460985).

Almost surely, 2^68441157 is an apocalyptic number.

It is an amenable number.

68441157 is a deficient number, since it is larger than the sum of its proper divisors (33090663).

68441157 is a wasteful number, since it uses less digits than its factorization.

68441157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205572 (or 205569 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 68441157 is about 8272.9170792412. The cubic root of 68441157 is about 409.0462801550.

It can be divided in two parts, 6844 and 1157, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 68441157 in words is "sixty-eight million, four hundred forty-one thousand, one hundred fifty-seven".