315420447 has 8 divisors (see below), whose sum is σ = 427455280. Its totient is φ = 206832960.

The previous prime is 315420433. The next prime is 315420461. The reversal of 315420447 is 744024513.

It is an interprime number because it is at equal distance from previous prime (315420433) and next prime (315420461).

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

It is not a de Polignac number, because 315420447 - 2⁶ = 315420383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315420047) 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, 861622 + ... + 861987.

It is an arithmetic number, because the mean of its divisors is an integer number (53431910).

Almost surely, 2^315420447 is an apocalyptic number.

315420447 is a deficient number, since it is larger than the sum of its proper divisors (112034833).

315420447 is a wasteful number, since it uses less digits than its factorization.

315420447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723673.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 315420447 is about 17760.0801518462. The cubic root of 315420447 is about 680.7118029455.

The spelling of 315420447 in words is "three hundred fifteen million, four hundred twenty thousand, four hundred forty-seven".