947470145 has 8 divisors (see below), whose sum is σ = 1138736256. Its totient is φ = 756794736.

The previous prime is 947470103. The next prime is 947470157. The reversal of 947470145 is 541074749.

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

It is a cyclic number.

It is not a de Polignac number, because 947470145 - 2¹⁸ = 947208001 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144137 + ... + 150566.

It is an arithmetic number, because the mean of its divisors is an integer number (142342032).

Almost surely, 2^947470145 is an apocalyptic number.

It is an amenable number.

947470145 is a deficient number, since it is larger than the sum of its proper divisors (191266111).

947470145 is a wasteful number, since it uses less digits than its factorization.

947470145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295351.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 947470145 is about 30781.0029888566. The cubic root of 947470145 is about 982.1741764596.

The spelling of 947470145 in words is "nine hundred forty-seven million, four hundred seventy thousand, one hundred forty-five".