1255151101 has 8 divisors (see below), whose sum is σ = 1318068864. Its totient is φ = 1192928880.

The previous prime is 1255151083. The next prime is 1255151137. The reversal of 1255151101 is 1011515521.

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 1255151101 - 2²³ = 1246762493 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 (1255151501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170185 + ... + 177406.

It is an arithmetic number, because the mean of its divisors is an integer number (164758608).

Almost surely, 2^1255151101 is an apocalyptic number.

It is an amenable number.

1255151101 is a deficient number, since it is larger than the sum of its proper divisors (62917763).

1255151101 is a wasteful number, since it uses less digits than its factorization.

1255151101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347771.

The product of its (nonzero) digits is 250, while the sum is 22.

The square root of 1255151101 is about 35428.1117334808. Note that the first 3 decimals coincide. The cubic root of 1255151101 is about 1078.6950118661.

Adding to 1255151101 its reverse (1011515521), we get a palindrome (2266666622).

The spelling of 1255151101 in words is "one billion, two hundred fifty-five million, one hundred fifty-one thousand, one hundred one".