1002013747 has 4 divisors (see below), whose sum is σ = 1145158576. Its totient is φ = 858868920.

The previous prime is 1002013739. The next prime is 1002013759. The reversal of 1002013747 is 7473102001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7473102001 = 60397 ⋅123733.

It is not a de Polignac number, because 1002013747 - 2³ = 1002013739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002013247) 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, 71572404 + ... + 71572417.

It is an arithmetic number, because the mean of its divisors is an integer number (286289644).

Almost surely, 2^1002013747 is an apocalyptic number.

1002013747 is a deficient number, since it is larger than the sum of its proper divisors (143144829).

1002013747 is an equidigital number, since it uses as much as digits as its factorization.

1002013747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143144828.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 1002013747 is about 31654.6007240654. The cubic root of 1002013747 is about 1000.6707989282.

Adding to 1002013747 its reverse (7473102001), we get a palindrome (8475115748).

The spelling of 1002013747 in words is "one billion, two million, thirteen thousand, seven hundred forty-seven".