2002145245 has 16 divisors (see below), whose sum is σ = 2476235520. Its totient is φ = 1553235264.

The previous prime is 2002145227. The next prime is 2002145279. The reversal of 2002145245 is 5425412002.

It is a cyclic number.

It is not a de Polignac number, because 2002145245 - 2⁵ = 2002145213 is a prime.

It is a super-2 number, since 2×2002145245² = 8017171164152220050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13467 + ... + 64696.

It is an arithmetic number, because the mean of its divisors is an integer number (154764720).

Almost surely, 2^2002145245 is an apocalyptic number.

It is an amenable number.

2002145245 is a deficient number, since it is larger than the sum of its proper divisors (474090275).

2002145245 is a wasteful number, since it uses less digits than its factorization.

2002145245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78324.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2002145245 is about 44745.3376900879. The cubic root of 2002145245 is about 1260.3713621503.

Adding to 2002145245 its reverse (5425412002), we get a palindrome (7427557247).

The spelling of 2002145245 in words is "two billion, two million, one hundred forty-five thousand, two hundred forty-five".