140601621540 has 96 divisors (see below), whose sum is σ = 434966112000. Its totient is φ = 33753972736.

The previous prime is 140601621491. The next prime is 140601621547. The reversal of 140601621540 is 45126106041.

140601621540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 140601621498 and 140601621507.

It is not an unprimeable number, because it can be changed into a prime (140601621547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2973165 + ... + 3020084.

It is an arithmetic number, because the mean of its divisors is an integer number (4530897000).

Almost surely, 2^140601621540 is an apocalyptic number.

140601621540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140601621540 is an abundant number, since it is smaller than the sum of its proper divisors (294364490460).

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

140601621540 is a wasteful number, since it uses less digits than its factorization.

140601621540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5993301 (or 5993299 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 140601621540 its reverse (45126106041), we get a palindrome (185727727581).

The spelling of 140601621540 in words is "one hundred forty billion, six hundred one million, six hundred twenty-one thousand, five hundred forty".