147387640 has 32 divisors (see below), whose sum is σ = 342322560. Its totient is φ = 57052800.

The previous prime is 147387623. The next prime is 147387659. The reversal of 147387640 is 46783741.

147387640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) 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 (40).

It is a junction number, because it is equal to n+sod(n) for n = 147387593 and 147387602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58191 + ... + 60670.

It is an arithmetic number, because the mean of its divisors is an integer number (10697580).

Almost surely, 2^147387640 is an apocalyptic number.

147387640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147387640 is an abundant number, since it is smaller than the sum of its proper divisors (194934920).

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

147387640 is a wasteful number, since it uses less digits than its factorization.

147387640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118903 (or 118899 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 147387640 is about 12140.3311322221. The cubic root of 147387640 is about 528.2267066704.

The spelling of 147387640 in words is "one hundred forty-seven million, three hundred eighty-seven thousand, six hundred forty".