1002774001 has 4 divisors (see below), whose sum is σ = 1055551600. Its totient is φ = 949996404.

The previous prime is 1002773969. The next prime is 1002774007. The reversal of 1002774001 is 1004772001.

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: 1004772001 = 6151 ⋅163351.

It is a cyclic number.

It is not a de Polignac number, because 1002774001 - 2⁵ = 1002773969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002774007) 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, 26388771 + ... + 26388808.

It is an arithmetic number, because the mean of its divisors is an integer number (263887900).

Almost surely, 2^1002774001 is an apocalyptic number.

It is an amenable number.

1002774001 is a deficient number, since it is larger than the sum of its proper divisors (52777599).

1002774001 is an equidigital number, since it uses as much as digits as its factorization.

1002774001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52777598.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 1002774001 is about 31666.6070332772. The cubic root of 1002774001 is about 1000.9238133062.

The spelling of 1002774001 in words is "one billion, two million, seven hundred seventy-four thousand, one".