140655144 has 96 divisors (see below), whose sum is σ = 427049280. Its totient is φ = 37810176.

The previous prime is 140655139. The next prime is 140655149. The reversal of 140655144 is 441556041.

It is an interprime number because it is at equal distance from previous prime (140655139) and next prime (140655149).

It is not an unprimeable number, because it can be changed into a prime (140655149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47104 + ... + 50000.

It is an arithmetic number, because the mean of its divisors is an integer number (4448430).

Almost surely, 2^140655144 is an apocalyptic number.

140655144 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 140655144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213524640).

140655144 is an abundant number, since it is smaller than the sum of its proper divisors (286394136).

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

140655144 is a wasteful number, since it uses less digits than its factorization.

140655144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 140655144 is about 11859.8121401648. The cubic root of 140655144 is about 520.0581098768.

The spelling of 140655144 in words is "one hundred forty million, six hundred fifty-five thousand, one hundred forty-four".