1212551453 has 16 divisors (see below), whose sum is σ = 1285380096. Its totient is φ = 1142028720.

The previous prime is 1212551441. The next prime is 1212551477. The reversal of 1212551453 is 3541552121.

It is a cyclic number.

It is not a de Polignac number, because 1212551453 - 2¹⁴ = 1212535069 is a prime.

It is a super-2 number, since 2×1212551453² = 2940562052344822418, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212551953) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 407750 + ... + 410712.

It is an arithmetic number, because the mean of its divisors is an integer number (80336256).

Almost surely, 2^1212551453 is an apocalyptic number.

It is an amenable number.

1212551453 is a deficient number, since it is larger than the sum of its proper divisors (72828643).

1212551453 is a wasteful number, since it uses less digits than its factorization.

1212551453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344.

The product of its digits is 6000, while the sum is 29.

The square root of 1212551453 is about 34821.7095071451. The cubic root of 1212551453 is about 1066.3507010218.

The spelling of 1212551453 in words is "one billion, two hundred twelve million, five hundred fifty-one thousand, four hundred fifty-three".