1212764671 has 8 divisors (see below), whose sum is σ = 1264284288. Its totient is φ = 1162020000.

The previous prime is 1212764633. The next prime is 1212764701. The reversal of 1212764671 is 1764672121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212764671 - 2⁹ = 1212764159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212764671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212764611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190540 + ... + 196801.

It is an arithmetic number, because the mean of its divisors is an integer number (158035536).

Almost surely, 2^1212764671 is an apocalyptic number.

1212764671 is a deficient number, since it is larger than the sum of its proper divisors (51519617).

1212764671 is a wasteful number, since it uses less digits than its factorization.

1212764671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387473.

The product of its digits is 28224, while the sum is 37.

The square root of 1212764671 is about 34824.7709396630. The cubic root of 1212764671 is about 1066.4132005932.

The spelling of 1212764671 in words is "one billion, two hundred twelve million, seven hundred sixty-four thousand, six hundred seventy-one".