1002494001 has 4 divisors (see below), whose sum is σ = 1336658672. Its totient is φ = 668329332.

The previous prime is 1002493997. The next prime is 1002494023. The reversal of 1002494001 is 1004942001.

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.

It is not a de Polignac number, because 1002494001 - 2² = 1002493997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002494081) 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, 167082331 + ... + 167082336.

It is an arithmetic number, because the mean of its divisors is an integer number (334164668).

Almost surely, 2^1002494001 is an apocalyptic number.

It is an amenable number.

1002494001 is a deficient number, since it is larger than the sum of its proper divisors (334164671).

1002494001 is an equidigital number, since it uses as much as digits as its factorization.

1002494001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334164670.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1002494001 is about 31662.1856636588. The cubic root of 1002494001 is about 1000.8306435070.

The spelling of 1002494001 in words is "one billion, two million, four hundred ninety-four thousand, one".