147640 has 16 divisors (see below), whose sum is σ = 332280. Its totient is φ = 59040.

The previous prime is 147629. The next prime is 147647. The reversal of 147640 is 46741.

147640 is a repfigit number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1806 + ... + 1885.

2¹⁴⁷⁶⁴⁰ is an apocalyptic number.

147640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147640 is an abundant number, since it is smaller than the sum of its proper divisors (184640).

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

147640 is a wasteful number, since it uses less digits than its factorization.

147640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702 (or 3698 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 147640 is about 384.2395086401. The cubic root of 147640 is about 52.8528014800.

It can be divided in two parts, 147 and 640, that added together give a palindrome (787).

The spelling of 147640 in words is "one hundred forty-seven thousand, six hundred forty".