140552064 has 128 divisors (see below), whose sum is σ = 421708800. Its totient is φ = 46075392.

The previous prime is 140552051. The next prime is 140552077. The reversal of 140552064 is 460255041.

It is an interprime number because it is at equal distance from previous prime (140552051) and next prime (140552077).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231249 + ... + 231855.

It is an arithmetic number, because the mean of its divisors is an integer number (3294600).

Almost surely, 2^140552064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140552064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210854400).

140552064 is an abundant number, since it is smaller than the sum of its proper divisors (281156736).

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

140552064 is an equidigital number, since it uses as much as digits as its factorization.

140552064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 140552064 is about 11855.4655749996. The cubic root of 140552064 is about 519.9310362191.

The spelling of 140552064 in words is "one hundred forty million, five hundred fifty-two thousand, sixty-four".