140625443994 has 32 divisors (see below), whose sum is σ = 321450370560. Its totient is φ = 40176100272.

The previous prime is 140625443993. The next prime is 140625444013. The reversal of 140625443994 is 499344526041.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140625443993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604177 + ... + 803915.

It is an arithmetic number, because the mean of its divisors is an integer number (10045324080).

Almost surely, 2^140625443994 is an apocalyptic number.

140625443994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

140625443994 is an abundant number, since it is smaller than the sum of its proper divisors (180824926566).

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

140625443994 is a wasteful number, since it uses less digits than its factorization.

140625443994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216514.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 140625443994 in words is "one hundred forty billion, six hundred twenty-five million, four hundred forty-three thousand, nine hundred ninety-four".