1214153555 has 8 divisors (see below), whose sum is σ = 1520331552. Its totient is φ = 929091328.

The previous prime is 1214153539. The next prime is 1214153587. The reversal of 1214153555 is 5553514121.

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 1214153555 - 2⁴ = 1214153539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5278814 + ... + 5279043.

It is an arithmetic number, because the mean of its divisors is an integer number (190041444).

Almost surely, 2^1214153555 is an apocalyptic number.

1214153555 is a deficient number, since it is larger than the sum of its proper divisors (306177997).

1214153555 is a wasteful number, since it uses less digits than its factorization.

1214153555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10557885.

The product of its digits is 15000, while the sum is 32.

The square root of 1214153555 is about 34844.7062693890. The cubic root of 1214153555 is about 1066.8201383450.

Adding to 1214153555 its reverse (5553514121), we get a palindrome (6767667676).

The spelling of 1214153555 in words is "one billion, two hundred fourteen million, one hundred fifty-three thousand, five hundred fifty-five".