1280424151 has 4 divisors (see below), whose sum is σ = 1295851032. Its totient is φ = 1264997272.

The previous prime is 1280424143. The next prime is 1280424157. The reversal of 1280424151 is 1514240821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1514240821 = 5107 ⋅296503.

It is a cyclic number.

It is not a de Polignac number, because 1280424151 - 2³ = 1280424143 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 (1280424157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7713316 + ... + 7713481.

It is an arithmetic number, because the mean of its divisors is an integer number (323962758).

Almost surely, 2^1280424151 is an apocalyptic number.

1280424151 is a deficient number, since it is larger than the sum of its proper divisors (15426881).

1280424151 is an equidigital number, since it uses as much as digits as its factorization.

1280424151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15426880.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1280424151 is about 35783.0148394458. The cubic root of 1280424151 is about 1085.8869628671.

Adding to 1280424151 its reverse (1514240821), we get a palindrome (2794664972).

The spelling of 1280424151 in words is "one billion, two hundred eighty million, four hundred twenty-four thousand, one hundred fifty-one".