47405129 has 8 divisors (see below), whose sum is σ = 50286600. Its totient is φ = 44534016.

The previous prime is 47405119. The next prime is 47405147. The reversal of 47405129 is 92150474.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4108729 + 43296400 = 2027^2 + 6580^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-47405129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47405095 and 47405104.

It is not an unprimeable number, because it can be changed into a prime (47405119) 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, 8147 + ... + 12695.

It is an arithmetic number, because the mean of its divisors is an integer number (6285825).

Almost surely, 2^47405129 is an apocalyptic number.

It is an amenable number.

47405129 is a deficient number, since it is larger than the sum of its proper divisors (2881471).

47405129 is a wasteful number, since it uses less digits than its factorization.

47405129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5179.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 47405129 is about 6885.1382702165. The cubic root of 47405129 is about 361.9165507716.

The spelling of 47405129 in words is "forty-seven million, four hundred five thousand, one hundred twenty-nine".