1214155453 has 8 divisors (see below), whose sum is σ = 1469230272. Its totient is φ = 979486656.

The previous prime is 1214155417. The next prime is 1214155471. The reversal of 1214155453 is 3545514121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1214155453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214155493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5101375 + ... + 5101612.

It is an arithmetic number, because the mean of its divisors is an integer number (183653784).

Almost surely, 2^1214155453 is an apocalyptic number.

It is an amenable number.

1214155453 is a deficient number, since it is larger than the sum of its proper divisors (255074819).

1214155453 is a wasteful number, since it uses less digits than its factorization.

1214155453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10203011.

The product of its digits is 12000, while the sum is 31.

The square root of 1214155453 is about 34844.7335045054. The cubic root of 1214155453 is about 1066.8206942394.

Adding to 1214155453 its reverse (3545514121), we get a palindrome (4759669574).

The spelling of 1214155453 in words is "one billion, two hundred fourteen million, one hundred fifty-five thousand, four hundred fifty-three".