1220153135 has 16 divisors (see below), whose sum is σ = 1507147776. Its totient is φ = 947808288.

The previous prime is 1220153119. The next prime is 1220153161. The reversal of 1220153135 is 5313510221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1220153135 - 2⁴ = 1220153119 is a prime.

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 1220153135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9404 + ... + 50286.

It is an arithmetic number, because the mean of its divisors is an integer number (94196736).

Almost surely, 2^1220153135 is an apocalyptic number.

1220153135 is a deficient number, since it is larger than the sum of its proper divisors (286994641).

1220153135 is a wasteful number, since it uses less digits than its factorization.

1220153135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41062.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1220153135 is about 34930.6904455094. The cubic root of 1220153135 is about 1068.5744357375.

Adding to 1220153135 its reverse (5313510221), we get a palindrome (6533663356).

The spelling of 1220153135 in words is "one billion, two hundred twenty million, one hundred fifty-three thousand, one hundred thirty-five".