215048474 has 4 divisors (see below), whose sum is σ = 322572714. Its totient is φ = 107524236.

The previous prime is 215048467. The next prime is 215048497. The reversal of 215048474 is 474840512.

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

It can be written as a sum of positive squares in only one way, i.e., 189475225 + 25573249 = 13765^2 + 5057^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53762117 + ... + 53762120.

Almost surely, 2^215048474 is an apocalyptic number.

215048474 is a deficient number, since it is larger than the sum of its proper divisors (107524240).

215048474 is a wasteful number, since it uses less digits than its factorization.

215048474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107524239.

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 215048474 is about 14664.5311551376. The cubic root of 215048474 is about 599.1176605051.

Adding to 215048474 its reverse (474840512), we get a palindrome (689888986).

The spelling of 215048474 in words is "two hundred fifteen million, forty-eight thousand, four hundred seventy-four".