147391452 has 72 divisors (see below), whose sum is σ = 418707744. Its totient is φ = 43376256.

The previous prime is 147391441. The next prime is 147391457. The reversal of 147391452 is 254193741.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147391457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3918 + ... + 17610.

Almost surely, 2^147391452 is an apocalyptic number.

147391452 is a gapful number since it is divisible by the number (12) 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 147391452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209353872).

147391452 is an abundant number, since it is smaller than the sum of its proper divisors (271316292).

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

147391452 is a wasteful number, since it uses less digits than its factorization.

147391452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13739 (or 13734 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 147391452 is about 12140.4881285721. The cubic root of 147391452 is about 528.2312606092.

The spelling of 147391452 in words is "one hundred forty-seven million, three hundred ninety-one thousand, four hundred fifty-two".