1214671971 has 8 divisors (see below), whose sum is σ = 1621287504. Its totient is φ = 808918880.

The previous prime is 1214671961. The next prime is 1214671979. The reversal of 1214671971 is 1791764121.

It is a happy number.

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 1214671971 - 2⁹ = 1214671459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1214671979) 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, 212316 + ... + 217961.

It is an arithmetic number, because the mean of its divisors is an integer number (202660938).

Almost surely, 2^1214671971 is an apocalyptic number.

1214671971 is a deficient number, since it is larger than the sum of its proper divisors (406615533).

1214671971 is an equidigital number, since it uses as much as digits as its factorization.

1214671971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431221.

The product of its digits is 21168, while the sum is 39.

The square root of 1214671971 is about 34852.1444246979. The cubic root of 1214671971 is about 1066.9719527321.

The spelling of 1214671971 in words is "one billion, two hundred fourteen million, six hundred seventy-one thousand, nine hundred seventy-one".