140571648 has 132 divisors (see below), whose sum is σ = 464095840. Its totient is φ = 40144896.

The previous prime is 140571617. The next prime is 140571649. The reversal of 140571648 is 846175041.

It is a happy number.

140571648 is a `hidden beast` number, since 1 + 4 + 0 + 5 + 7 + 1 + 648 = 666.

It is a super-3 number, since 3×140571648³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140571649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63423 + ... + 65601.

Almost surely, 2^140571648 is an apocalyptic number.

140571648 is a gapful number since it is divisible by the number (18) 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 140571648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232047920).

140571648 is an abundant number, since it is smaller than the sum of its proper divisors (323524192).

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

140571648 is a wasteful number, since it uses less digits than its factorization.

140571648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212 (or 2191 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 140571648 is about 11856.2914943923. The cubic root of 140571648 is about 519.9551835143.

The spelling of 140571648 in words is "one hundred forty million, five hundred seventy-one thousand, six hundred forty-eight".