81230754 has 16 divisors (see below), whose sum is σ = 177230880. Its totient is φ = 24615360.

The previous prime is 81230753. The next prime is 81230767. The reversal of 81230754 is 45703218.

It is not an unprimeable number, because it can be changed into a prime (81230753) 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, 615319 + ... + 615450.

It is an arithmetic number, because the mean of its divisors is an integer number (11076930).

Almost surely, 2^81230754 is an apocalyptic number.

81230754 is an abundant number, since it is smaller than the sum of its proper divisors (96000126).

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

81230754 is a wasteful number, since it uses less digits than its factorization.

81230754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230785.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 81230754 is about 9012.8105494346. The cubic root of 81230754 is about 433.0853517384.

The spelling of 81230754 in words is "eighty-one million, two hundred thirty thousand, seven hundred fifty-four".