68244155 has 8 divisors (see below), whose sum is σ = 93592032. Its totient is φ = 46795968.

The previous prime is 68244119. The next prime is 68244167. The reversal of 68244155 is 55144286.

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 68244155 - 2²⁶ = 1135291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1949833 = 68244155 / (6 + 8 + 2 + 4 + 4 + 1 + 5 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974882 + ... + 974951.

It is an arithmetic number, because the mean of its divisors is an integer number (11699004).

Almost surely, 2^68244155 is an apocalyptic number.

68244155 is a deficient number, since it is larger than the sum of its proper divisors (25347877).

68244155 is a wasteful number, since it uses less digits than its factorization.

68244155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949845.

The product of its digits is 38400, while the sum is 35.

The square root of 68244155 is about 8261.0020578620. The cubic root of 68244155 is about 408.6534347790.

The spelling of 68244155 in words is "sixty-eight million, two hundred forty-four thousand, one hundred fifty-five".