1214648091 has 12 divisors (see below), whose sum is σ = 1756264432. Its totient is φ = 808947216.

The previous prime is 1214648069. The next prime is 1214648111. The reversal of 1214648091 is 1908464121.

1214648091 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 648 + 0 + 9 + 1 = 666.

It is not a de Polignac number, because 1214648091 - 2⁹ = 1214647579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214648021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58711 + ... + 76656.

Almost surely, 2^1214648091 is an apocalyptic number.

1214648091 is a deficient number, since it is larger than the sum of its proper divisors (541616341).

1214648091 is a wasteful number, since it uses less digits than its factorization.

1214648091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136370 (or 136367 counting only the distinct ones).

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

The square root of 1214648091 is about 34851.8018329038. The cubic root of 1214648091 is about 1066.9649605954.

The spelling of 1214648091 in words is "one billion, two hundred fourteen million, six hundred forty-eight thousand, ninety-one".