1213545314 has 16 divisors (see below), whose sum is σ = 1967913600. Its totient is φ = 559300464.

The previous prime is 1213545299. The next prime is 1213545329. The reversal of 1213545314 is 4135453121.

It is an interprime number because it is at equal distance from previous prime (1213545299) and next prime (1213545329).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430154 + ... + 432965.

It is an arithmetic number, because the mean of its divisors is an integer number (122994600).

Almost surely, 2^1213545314 is an apocalyptic number.

1213545314 is a deficient number, since it is larger than the sum of its proper divisors (754368286).

1213545314 is a wasteful number, since it uses less digits than its factorization.

1213545314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863177.

The product of its digits is 7200, while the sum is 29.

The square root of 1213545314 is about 34835.9772935969. The cubic root of 1213545314 is about 1066.6419642500.

Adding to 1213545314 its reverse (4135453121), we get a palindrome (5348998435).

The spelling of 1213545314 in words is "one billion, two hundred thirteen million, five hundred forty-five thousand, three hundred fourteen".