140663952 has 360 divisors, whose sum is σ = 504259392. Its totient is φ = 37635840.

The previous prime is 140663951. The next prime is 140663953. The reversal of 140663952 is 259366041.

It is a happy number.

140663952 is a `hidden beast` number, since 14 + 0 + 6 + 639 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (140663951) and next prime (140663953).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (140663951) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6115813 + ... + 6115835.

Almost surely, 2^140663952 is an apocalyptic number.

140663952 is a gapful number since it is divisible by the number (12) 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 140663952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252129696).

140663952 is an abundant number, since it is smaller than the sum of its proper divisors (363595440).

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

140663952 is a wasteful number, since it uses less digits than its factorization.

140663952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 140663952 is about 11860.1834724426. The cubic root of 140663952 is about 520.0689652120.

The spelling of 140663952 in words is "one hundred forty million, six hundred sixty-three thousand, nine hundred fifty-two".