147172029 has 4 divisors (see below), whose sum is σ = 196229376. Its totient is φ = 98114684.

The previous prime is 147172021. The next prime is 147172033. The reversal of 147172029 is 920271741.

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: 920271741 = 3 ⋅306757247.

It is a cyclic number.

It is not a de Polignac number, because 147172029 - 2³ = 147172021 is a prime.

It is a super-2 number, since 2×147172029² = 43319212239953682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147172021) 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, 24528669 + ... + 24528674.

It is an arithmetic number, because the mean of its divisors is an integer number (49057344).

Almost surely, 2^147172029 is an apocalyptic number.

It is an amenable number.

147172029 is a deficient number, since it is larger than the sum of its proper divisors (49057347).

147172029 is an equidigital number, since it uses as much as digits as its factorization.

147172029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49057346.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 147172029 is about 12131.4479350158. The cubic root of 147172029 is about 527.9690028578.

The spelling of 147172029 in words is "one hundred forty-seven million, one hundred seventy-two thousand, twenty-nine".