68729154 has 16 divisors (see below), whose sum is σ = 148032192. Its totient is φ = 21147408.

The previous prime is 68729153. The next prime is 68729173. The reversal of 68729154 is 45192786.

It is not an unprimeable number, because it can be changed into a prime (68729153) 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, 440494 + ... + 440649.

It is an arithmetic number, because the mean of its divisors is an integer number (9252012).

Almost surely, 2^68729154 is an apocalyptic number.

68729154 is an abundant number, since it is smaller than the sum of its proper divisors (79303038).

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

68729154 is a wasteful number, since it uses less digits than its factorization.

68729154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881161.

The product of its digits is 120960, while the sum is 42.

The square root of 68729154 is about 8290.3048194864. The cubic root of 68729154 is about 409.6192260936.

The spelling of 68729154 in words is "sixty-eight million, seven hundred twenty-nine thousand, one hundred fifty-four".