1214402551 has 8 divisors (see below), whose sum is σ = 1231260800. Its totient is φ = 1197660600.

The previous prime is 1214402549. The next prime is 1214402561. The reversal of 1214402551 is 1552044121.

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

It is a cyclic number.

It is not a de Polignac number, because 1214402551 - 2¹ = 1214402549 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 (1214402561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7941 + ... + 49918.

It is an arithmetic number, because the mean of its divisors is an integer number (153907600).

Almost surely, 2^1214402551 is an apocalyptic number.

1214402551 is a deficient number, since it is larger than the sum of its proper divisors (16858249).

1214402551 is a wasteful number, since it uses less digits than its factorization.

1214402551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58149.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1214402551 is about 34848.2790249390. The cubic root of 1214402551 is about 1066.8930604202.

Adding to 1214402551 its reverse (1552044121), we get a palindrome (2766446672).

The spelling of 1214402551 in words is "one billion, two hundred fourteen million, four hundred two thousand, five hundred fifty-one".