1214152271 has 4 divisors (see below), whose sum is σ = 1214588544. Its totient is φ = 1213716000.

The previous prime is 1214152259. The next prime is 1214152273. The reversal of 1214152271 is 1722514121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1214152271 - 2⁶ = 1214152207 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 1214152271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214152273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213935 + ... + 219536.

It is an arithmetic number, because the mean of its divisors is an integer number (303647136).

Almost surely, 2^1214152271 is an apocalyptic number.

1214152271 is a deficient number, since it is larger than the sum of its proper divisors (436273).

1214152271 is an equidigital number, since it uses as much as digits as its factorization.

1214152271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436272.

The product of its digits is 1120, while the sum is 26.

The square root of 1214152271 is about 34844.6878447777. The cubic root of 1214152271 is about 1066.8197622812.

Adding to 1214152271 its reverse (1722514121), we get a palindrome (2936666392).

The spelling of 1214152271 in words is "one billion, two hundred fourteen million, one hundred fifty-two thousand, two hundred seventy-one".