139226500 has 48 divisors (see below), whose sum is σ = 347518080. Its totient is φ = 47733600.

The previous prime is 139226491. The next prime is 139226513. The reversal of 139226500 is 5622931.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16390 + ... + 23389.

It is an arithmetic number, because the mean of its divisors is an integer number (7239960).

Almost surely, 2^139226500 is an apocalyptic number.

139226500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139226500 is an abundant number, since it is smaller than the sum of its proper divisors (208291580).

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

139226500 is a wasteful number, since it uses less digits than its factorization.

139226500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39805 (or 39793 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 139226500 is about 11799.4279522357. The cubic root of 139226500 is about 518.2913592719.

The spelling of 139226500 in words is "one hundred thirty-nine million, two hundred twenty-six thousand, five hundred".