1280061455 has 8 divisors (see below), whose sum is σ = 1585624704. Its totient is φ = 991015200.

The previous prime is 1280061439. The next prime is 1280061473. The reversal of 1280061455 is 5541600821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1280061455 - 2⁴ = 1280061439 is a prime.

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, 4129076 + ... + 4129385.

It is an arithmetic number, because the mean of its divisors is an integer number (198203088).

Almost surely, 2^1280061455 is an apocalyptic number.

1280061455 is a deficient number, since it is larger than the sum of its proper divisors (305563249).

1280061455 is an equidigital number, since it uses as much as digits as its factorization.

1280061455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8258497.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 1280061455 is about 35777.9464894228. The cubic root of 1280061455 is about 1085.7844228739.

The spelling of 1280061455 in words is "one billion, two hundred eighty million, sixty-one thousand, four hundred fifty-five".