450164047 has 4 divisors (see below), whose sum is σ = 455222160. Its totient is φ = 445105936.

The previous prime is 450164023. The next prime is 450164083. The reversal of 450164047 is 740461054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 450164047 - 2⁷ = 450163919 is a prime.

It is a super-2 number, since 2×450164047² = 405295338422836418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450164147) 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, 2528923 + ... + 2529100.

It is an arithmetic number, because the mean of its divisors is an integer number (113805540).

Almost surely, 2^450164047 is an apocalyptic number.

450164047 is a deficient number, since it is larger than the sum of its proper divisors (5058113).

450164047 is an equidigital number, since it uses as much as digits as its factorization.

450164047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058112.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 450164047 is about 21217.0697081383. The cubic root of 450164047 is about 766.4025401644.

The spelling of 450164047 in words is "four hundred fifty million, one hundred sixty-four thousand, forty-seven".