147352681 has 4 divisors (see below), whose sum is σ = 168403072. Its totient is φ = 126302292.

The previous prime is 147352669. The next prime is 147352691. The reversal of 147352681 is 186253741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 186253741 = 397 ⋅469153.

It is a cyclic number.

It is not a de Polignac number, because 147352681 - 2⁷ = 147352553 is a prime.

It is a super-2 number, since 2×147352681² = 43425625195775522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 147352681.

It is not an unprimeable number, because it can be changed into a prime (147352691) 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, 10525185 + ... + 10525198.

It is an arithmetic number, because the mean of its divisors is an integer number (42100768).

Almost surely, 2^147352681 is an apocalyptic number.

It is an amenable number.

147352681 is a deficient number, since it is larger than the sum of its proper divisors (21050391).

147352681 is an equidigital number, since it uses as much as digits as its factorization.

147352681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21050390.

The product of its digits is 40320, while the sum is 37.

The square root of 147352681 is about 12138.8912590895. The cubic root of 147352681 is about 528.1849398537.

The spelling of 147352681 in words is "one hundred forty-seven million, three hundred fifty-two thousand, six hundred eighty-one".