1214953673 has 4 divisors (see below), whose sum is σ = 1231596948. Its totient is φ = 1198310400.

The previous prime is 1214953669. The next prime is 1214953681. The reversal of 1214953673 is 3763594121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 219424969 + 995528704 = 14813^2 + 31552^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214953673 - 2² = 1214953669 is a prime.

It is a super-2 number, since 2×1214953673² = 2952224855072381858, which contains 22 as substring.

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 1214953673.

It is not an unprimeable number, because it can be changed into a prime (1214953693) 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, 8321528 + ... + 8321673.

It is an arithmetic number, because the mean of its divisors is an integer number (307899237).

Almost surely, 2^1214953673 is an apocalyptic number.

It is an amenable number.

1214953673 is a deficient number, since it is larger than the sum of its proper divisors (16643275).

1214953673 is an equidigital number, since it uses as much as digits as its factorization.

1214953673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16643274.

The product of its digits is 136080, while the sum is 41.

The square root of 1214953673 is about 34856.1855773118. The cubic root of 1214953673 is about 1067.0544290186.

The spelling of 1214953673 in words is "one billion, two hundred fourteen million, nine hundred fifty-three thousand, six hundred seventy-three".