47458129 has 2 divisors, whose sum is σ = 47458130. Its totient is φ = 47458128.

The previous prime is 47458069. The next prime is 47458157. The reversal of 47458129 is 92185474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45900625 + 1557504 = 6775^2 + 1248^2 .

It is a cyclic number.

It is not a de Polignac number, because 47458129 - 2¹¹ = 47456081 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 47458091 and 47458100.

It is not a weakly prime, because it can be changed into another prime (47458429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23729064 + 23729065.

It is an arithmetic number, because the mean of its divisors is an integer number (23729065).

Almost surely, 2^47458129 is an apocalyptic number.

It is an amenable number.

47458129 is a deficient number, since it is larger than the sum of its proper divisors (1).

47458129 is an equidigital number, since it uses as much as digits as its factorization.

47458129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 47458129 is about 6888.9860647268. The cubic root of 47458129 is about 362.0513774844.

The spelling of 47458129 in words is "forty-seven million, four hundred fifty-eight thousand, one hundred twenty-nine".