1101620255 has 8 divisors (see below), whose sum is σ = 1323488400. Its totient is φ = 880266816.

The previous prime is 1101620243. The next prime is 1101620321. The reversal of 1101620255 is 5520261011.

It is a happy number.

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 1101620255 - 2¹⁶ = 1101554719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101620255.

It is a congruent 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, 123950 + ... + 132539.

It is an arithmetic number, because the mean of its divisors is an integer number (165436050).

Almost surely, 2^1101620255 is an apocalyptic number.

1101620255 is a deficient number, since it is larger than the sum of its proper divisors (221868145).

1101620255 is an equidigital number, since it uses as much as digits as its factorization.

1101620255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257353.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1101620255 is about 33190.6651786312. The cubic root of 1101620255 is about 1032.7867022706.

Adding to 1101620255 its reverse (5520261011), we get a palindrome (6621881266).

The spelling of 1101620255 in words is "one billion, one hundred one million, six hundred twenty thousand, two hundred fifty-five".