1020255151 has 8 divisors (see below), whose sum is σ = 1031817600. Its totient is φ = 1008732960.

The previous prime is 1020255143. The next prime is 1020255209. The reversal of 1020255151 is 1515520201.

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 1020255151 - 2³ = 1020255143 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 (1020255121) 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, 42441 + ... + 61981.

It is an arithmetic number, because the mean of its divisors is an integer number (128977200).

Almost surely, 2^1020255151 is an apocalyptic number.

1020255151 is a deficient number, since it is larger than the sum of its proper divisors (11562449).

1020255151 is a wasteful number, since it uses less digits than its factorization.

1020255151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20129.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1020255151 is about 31941.4331394194. The cubic root of 1020255151 is about 1006.7066374614.

Adding to 1020255151 its reverse (1515520201), we get a palindrome (2535775352).

The spelling of 1020255151 in words is "one billion, twenty million, two hundred fifty-five thousand, one hundred fifty-one".