1210648491 has 32 divisors (see below), whose sum is σ = 1940305920. Its totient is φ = 741625632.

The previous prime is 1210648469. The next prime is 1210648603. The reversal of 1210648491 is 1948460121.

1210648491 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 648 + 4 + 9 + 1 = 666.

It is not a de Polignac number, because 1210648491 - 2⁵ = 1210648459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210648091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70540 + ... + 86006.

It is an arithmetic number, because the mean of its divisors is an integer number (60634560).

Almost surely, 2^1210648491 is an apocalyptic number.

1210648491 is a deficient number, since it is larger than the sum of its proper divisors (729657429).

1210648491 is a wasteful number, since it uses less digits than its factorization.

1210648491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15712 (or 15706 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1210648491 is about 34794.3744159886. The cubic root of 1210648491 is about 1065.7925701124.

The spelling of 1210648491 in words is "one billion, two hundred ten million, six hundred forty-eight thousand, four hundred ninety-one".