1002402545 has 8 divisors (see below), whose sum is σ = 1244361960. Its totient is φ = 774269440.

The previous prime is 1002402529. The next prime is 1002402593. The reversal of 1002402545 is 5452042001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1882384 + 1000520161 = 1372^2 + 31631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1002402545 - 2⁴ = 1002402529 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002402545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3456416 + ... + 3456705.

It is an arithmetic number, because the mean of its divisors is an integer number (155545245).

Almost surely, 2^1002402545 is an apocalyptic number.

It is an amenable number.

1002402545 is a deficient number, since it is larger than the sum of its proper divisors (241959415).

1002402545 is an equidigital number, since it uses as much as digits as its factorization.

1002402545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6913155.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 1002402545 is about 31660.7413842443. The cubic root of 1002402545 is about 1000.8002078300.

Adding to 1002402545 its reverse (5452042001), we get a palindrome (6454444546).

The spelling of 1002402545 in words is "one billion, two million, four hundred two thousand, five hundred forty-five".