1214403145 has 32 divisors (see below), whose sum is σ = 1588654080. Its totient is φ = 887785920.

The previous prime is 1214403133. The next prime is 1214403181. The reversal of 1214403145 is 5413044121.

It is not a de Polignac number, because 1214403145 - 2⁷ = 1214403017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1374874 + ... + 1375756.

It is an arithmetic number, because the mean of its divisors is an integer number (49645440).

Almost surely, 2^1214403145 is an apocalyptic number.

It is an amenable number.

1214403145 is a deficient number, since it is larger than the sum of its proper divisors (374250935).

1214403145 is a wasteful number, since it uses less digits than its factorization.

1214403145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1214403145 is about 34848.2875475969. The cubic root of 1214403145 is about 1066.8932343698.

Adding to 1214403145 its reverse (5413044121), we get a palindrome (6627447266).

The spelling of 1214403145 in words is "one billion, two hundred fourteen million, four hundred three thousand, one hundred forty-five".