1478345129 has 4 divisors (see below), whose sum is σ = 1478668176. Its totient is φ = 1478022084.

The previous prime is 1478345107. The next prime is 1478345131. The reversal of 1478345129 is 9215438741.

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: 9215438741 = 1283 ⋅7182727.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1478345129 is a prime.

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 1478345129.

It is not an unprimeable number, because it can be changed into a prime (1478345149) 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, 154559 + ... + 163844.

It is an arithmetic number, because the mean of its divisors is an integer number (369667044).

Almost surely, 2^1478345129 is an apocalyptic number.

It is an amenable number.

1478345129 is a deficient number, since it is larger than the sum of its proper divisors (323047).

1478345129 is an equidigital number, since it uses as much as digits as its factorization.

1478345129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323046.

The product of its digits is 241920, while the sum is 44.

The square root of 1478345129 is about 38449.2539459480. The cubic root of 1478345129 is about 1139.1789329940.

The spelling of 1478345129 in words is "one billion, four hundred seventy-eight million, three hundred forty-five thousand, one hundred twenty-nine".