147888540 has 36 divisors (see below), whose sum is σ = 448595784. Its totient is φ = 39436896.

The previous prime is 147888529. The next prime is 147888557. The reversal of 147888540 is 45888741.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 410622 + ... + 410981.

It is an arithmetic number, because the mean of its divisors is an integer number (12460994).

Almost surely, 2^147888540 is an apocalyptic number.

147888540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147888540 is an abundant number, since it is smaller than the sum of its proper divisors (300707244).

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

147888540 is a wasteful number, since it uses less digits than its factorization.

147888540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821618 (or 821613 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The square root of 147888540 is about 12160.9432199974. The cubic root of 147888540 is about 528.8244265905.

The spelling of 147888540 in words is "one hundred forty-seven million, eight hundred eighty-eight thousand, five hundred forty".