147668736 has 72 divisors (see below), whose sum is σ = 401474304. Its totient is φ = 48163840.

The previous prime is 147668723. The next prime is 147668743. The reversal of 147668736 is 637866741.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 34051 + ... + 38141.

It is an arithmetic number, because the mean of its divisors is an integer number (5576032).

Almost surely, 2^147668736 is an apocalyptic number.

147668736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147668736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200737152).

147668736 is an abundant number, since it is smaller than the sum of its proper divisors (253805568).

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

147668736 is an equidigital number, since it uses as much as digits as its factorization.

147668736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4157 (or 4143 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 48.

The square root of 147668736 is about 12151.9025670880. The cubic root of 147668736 is about 528.5623026982.

The spelling of 147668736 in words is "one hundred forty-seven million, six hundred sixty-eight thousand, seven hundred thirty-six".