1211715848 has 32 divisors (see below), whose sum is σ = 2680296960. Its totient is φ = 502554240.

The previous prime is 1211715833. The next prime is 1211715871. The reversal of 1211715848 is 8485171121.

It is a happy 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, 347261 + ... + 350732.

It is an arithmetic number, because the mean of its divisors is an integer number (83759280).

Almost surely, 2^1211715848 is an apocalyptic number.

It is an amenable number.

1211715848 is an abundant number, since it is smaller than the sum of its proper divisors (1468581112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211715848 is a wasteful number, since it uses less digits than its factorization.

1211715848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698037 (or 698033 counting only the distinct ones).

The product of its digits is 17920, while the sum is 38.

The square root of 1211715848 is about 34809.7091053631. The cubic root of 1211715848 is about 1066.1056934838.

Adding to 1211715848 its reverse (8485171121), we get a palindrome (9696886969).

The spelling of 1211715848 in words is "one billion, two hundred eleven million, seven hundred fifteen thousand, eight hundred forty-eight".