147434691 has 4 divisors (see below), whose sum is σ = 196579592. Its totient is φ = 98289792.

The previous prime is 147434671. The next prime is 147434713. The reversal of 147434691 is 196434741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 196434741 = 3 ⋅65478247.

It is not a de Polignac number, because 147434691 - 2⁶ = 147434627 is a prime.

It is a super-2 number, since 2×147434691² = 43473976220530962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147434611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24572446 + ... + 24572451.

It is an arithmetic number, because the mean of its divisors is an integer number (49144898).

Almost surely, 2^147434691 is an apocalyptic number.

147434691 is a deficient number, since it is larger than the sum of its proper divisors (49144901).

147434691 is an equidigital number, since it uses as much as digits as its factorization.

147434691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49144900.

The product of its digits is 72576, while the sum is 39.

The square root of 147434691 is about 12142.2687748213. The cubic root of 147434691 is about 528.2829098241.

Subtracting 147434691 from its reverse (196434741), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 147434691 in words is "one hundred forty-seven million, four hundred thirty-four thousand, six hundred ninety-one".