1248717001 has 4 divisors (see below), whose sum is σ = 1427105152. Its totient is φ = 1070328852.

The previous prime is 1248716981. The next prime is 1248717007. The reversal of 1248717001 is 1007178421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1007178421 = 109 ⋅9240169.

It is a cyclic number.

It is not a de Polignac number, because 1248717001 - 2⁵ = 1248716969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248717007) 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, 89194065 + ... + 89194078.

It is an arithmetic number, because the mean of its divisors is an integer number (356776288).

Almost surely, 2^1248717001 is an apocalyptic number.

It is an amenable number.

1248717001 is a deficient number, since it is larger than the sum of its proper divisors (178388151).

1248717001 is an equidigital number, since it uses as much as digits as its factorization.

1248717001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178388150.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 1248717001 is about 35337.1900552378. The cubic root of 1248717001 is about 1076.8486671766.

The spelling of 1248717001 in words is "one billion, two hundred forty-eight million, seven hundred seventeen thousand, one".