147151247 has 4 divisors (see below), whose sum is σ = 147511440. Its totient is φ = 146791056.

The previous prime is 147151241. The next prime is 147151253. The reversal of 147151247 is 742151741.

147151247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742151741 = 23 ⋅32267467.

It is an interprime number because it is at equal distance from previous prime (147151241) and next prime (147151253).

It is a cyclic number.

It is not a de Polignac number, because 147151247 - 2¹⁸ = 146889103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147151241) 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, 179483 + ... + 180300.

It is an arithmetic number, because the mean of its divisors is an integer number (36877860).

Almost surely, 2^147151247 is an apocalyptic number.

147151247 is a deficient number, since it is larger than the sum of its proper divisors (360193).

147151247 is an equidigital number, since it uses as much as digits as its factorization.

147151247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360192.

The product of its digits is 7840, while the sum is 32.

The square root of 147151247 is about 12130.5913705804. The cubic root of 147151247 is about 527.9441503809.

The spelling of 147151247 in words is "one hundred forty-seven million, one hundred fifty-one thousand, two hundred forty-seven".