139548864 has 224 divisors, whose sum is σ = 466547200. Its totient is φ = 36578304.

The previous prime is 139548833. The next prime is 139548883. The reversal of 139548864 is 468845931.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 856047 + ... + 856209.

It is an arithmetic number, because the mean of its divisors is an integer number (2082800).

Almost surely, 2^139548864 is an apocalyptic number.

139548864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139548864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233273600).

139548864 is an abundant number, since it is smaller than the sum of its proper divisors (326998336).

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

139548864 is a wasteful number, since it uses less digits than its factorization.

139548864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 188 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 139548864 is about 11813.0802079729. The cubic root of 139548864 is about 518.6910669200.

The spelling of 139548864 in words is "one hundred thirty-nine million, five hundred forty-eight thousand, eight hundred sixty-four".