47145429 has 8 divisors (see below), whose sum is σ = 69845120. Its totient is φ = 31430268.

The previous prime is 47145419. The next prime is 47145431. The reversal of 47145429 is 92454174.

It is a happy number.

It is not a de Polignac number, because 47145429 - 2⁸ = 47145173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47145393 and 47145402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47145419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 873037 + ... + 873090.

It is an arithmetic number, because the mean of its divisors is an integer number (8730640).

Almost surely, 2^47145429 is an apocalyptic number.

It is an amenable number.

47145429 is a deficient number, since it is larger than the sum of its proper divisors (22699691).

47145429 is a wasteful number, since it uses less digits than its factorization.

47145429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746136 (or 1746130 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 47145429 is about 6866.2529082462. The cubic root of 47145429 is about 361.2544431792.

It can be divided in two parts, 47145 and 429, that added together give a palindrome (47574).

The spelling of 47145429 in words is "forty-seven million, one hundred forty-five thousand, four hundred twenty-nine".