47170451 has 2 divisors, whose sum is σ = 47170452. Its totient is φ = 47170450.

The previous prime is 47170439. The next prime is 47170457. The reversal of 47170451 is 15407174.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47170451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47170457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23585225 + 23585226.

It is an arithmetic number, because the mean of its divisors is an integer number (23585226).

Almost surely, 2^47170451 is an apocalyptic number.

47170451 is a deficient number, since it is larger than the sum of its proper divisors (1).

47170451 is an equidigital number, since it uses as much as digits as its factorization.

47170451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 47170451 is about 6868.0747666286. The cubic root of 47170451 is about 361.3183426930.

The spelling of 47170451 in words is "forty-seven million, one hundred seventy thousand, four hundred fifty-one".