1301248775 has 24 divisors (see below), whose sum is σ = 1656175248. Its totient is φ = 1013600000.

The previous prime is 1301248769. The next prime is 1301248783. The reversal of 1301248775 is 5778421031.

It is not a de Polignac number, because 1301248775 - 2¹⁰ = 1301247751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 717620 + ... + 719430.

It is an arithmetic number, because the mean of its divisors is an integer number (69007302).

Almost surely, 2^1301248775 is an apocalyptic number.

1301248775 is a deficient number, since it is larger than the sum of its proper divisors (354926473).

1301248775 is a wasteful number, since it uses less digits than its factorization.

1301248775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563 (or 2558 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 1301248775 is about 36072.8259913193. The cubic root of 1301248775 is about 1091.7422338252.

The spelling of 1301248775 in words is "one billion, three hundred one million, two hundred forty-eight thousand, seven hundred seventy-five".