1002252479 has 4 divisors (see below), whose sum is σ = 1003787976. Its totient is φ = 1000716984.

The previous prime is 1002252469. The next prime is 1002252481. The reversal of 1002252479 is 9742522001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9742522001 = 2237 ⋅4355173.

It is a cyclic number.

It is not a de Polignac number, because 1002252479 - 2²⁸ = 733817023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002252469) 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, 766769 + ... + 768074.

It is an arithmetic number, because the mean of its divisors is an integer number (250946994).

Almost surely, 2^1002252479 is an apocalyptic number.

1002252479 is a deficient number, since it is larger than the sum of its proper divisors (1535497).

1002252479 is an equidigital number, since it uses as much as digits as its factorization.

1002252479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535496.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1002252479 is about 31658.3713889391. The cubic root of 1002252479 is about 1000.7502632975.

The spelling of 1002252479 in words is "one billion, two million, two hundred fifty-two thousand, four hundred seventy-nine".