2215715242 has 8 divisors (see below), whose sum is σ = 3579232356. Its totient is φ = 1022637792.

The previous prime is 2215715237. The next prime is 2215715251. The reversal of 2215715242 is 2425175122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2161413081 + 54302161 = 46491^2 + 7369^2 .

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

It is a super-2 number, since 2×2215715242² = 9818788067262237128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42609883 + ... + 42609934.

Almost surely, 2^2215715242 is an apocalyptic number.

2215715242 is a deficient number, since it is larger than the sum of its proper divisors (1363517114).

2215715242 is a wasteful number, since it uses less digits than its factorization.

2215715242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85219832.

The product of its digits is 11200, while the sum is 31.

The square root of 2215715242 is about 47071.3845345556. The cubic root of 2215715242 is about 1303.6809368582.

The spelling of 2215715242 in words is "two billion, two hundred fifteen million, seven hundred fifteen thousand, two hundred forty-two".