1214149445 has 6 divisors (see below), whose sum is σ = 1457072838. Its totient is φ = 971257224.

The previous prime is 1214149427. The next prime is 1214149451. The reversal of 1214149445 is 5449414121.

It can be written as a sum of positive squares in only one way, i.e., 971319556 + 242829889 = 31166^2 + 15583^2 .

It is not a de Polignac number, because 1214149445 - 2²⁰ = 1213100869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70124 + ... + 85706.

It is an arithmetic number, because the mean of its divisors is an integer number (242845473).

Almost surely, 2^1214149445 is an apocalyptic number.

It is an amenable number.

1214149445 is a deficient number, since it is larger than the sum of its proper divisors (242923393).

1214149445 is an frugal number, since it uses more digits than its factorization.

1214149445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31171 (or 15588 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 1214149445 is about 34844.6472933792. The cubic root of 1214149445 is about 1066.8189345885.

The spelling of 1214149445 in words is "one billion, two hundred fourteen million, one hundred forty-nine thousand, four hundred forty-five".