68561154 has 40 divisors (see below), whose sum is σ = 155509200. Its totient is φ = 22573944.

The previous prime is 68561149. The next prime is 68561159. The reversal of 68561154 is 45116586.

It is an interprime number because it is at equal distance from previous prime (68561149) and next prime (68561159).

It is not an unprimeable number, because it can be changed into a prime (68561159) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10897 + ... + 15995.

It is an arithmetic number, because the mean of its divisors is an integer number (3887730).

Almost surely, 2^68561154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68561154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77754600).

68561154 is an abundant number, since it is smaller than the sum of its proper divisors (86948046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68561154 is a wasteful number, since it uses less digits than its factorization.

68561154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196 (or 5187 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 68561154 is about 8280.1663026777. The cubic root of 68561154 is about 409.2851991050.

The spelling of 68561154 in words is "sixty-eight million, five hundred sixty-one thousand, one hundred fifty-four".