1301280155 has 8 divisors (see below), whose sum is σ = 1784612832. Its totient is φ = 892306368.

The previous prime is 1301280143. The next prime is 1301280163. The reversal of 1301280155 is 5510821031.

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 1301280155 - 2⁴ = 1301280139 is a prime.

It is a Duffinian 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, 18589682 + ... + 18589751.

It is an arithmetic number, because the mean of its divisors is an integer number (223076604).

Almost surely, 2^1301280155 is an apocalyptic number.

1301280155 is a deficient number, since it is larger than the sum of its proper divisors (483332677).

1301280155 is an equidigital number, since it uses as much as digits as its factorization.

1301280155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37179445.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1301280155 is about 36073.2609421438. The cubic root of 1301280155 is about 1091.7510096506.

The spelling of 1301280155 in words is "one billion, three hundred one million, two hundred eighty thousand, one hundred fifty-five".