2145200636 has 6 divisors (see below), whose sum is σ = 3754101120. Its totient is φ = 1072600316.

The previous prime is 2145200623. The next prime is 2145200657. The reversal of 2145200636 is 6360025412.

It is a junction number, because it is equal to n+sod(n) for n = 2145200599 and 2145200608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268150076 + ... + 268150083.

It is an arithmetic number, because the mean of its divisors is an integer number (625683520).

Almost surely, 2^2145200636 is an apocalyptic number.

It is an amenable number.

2145200636 is a deficient number, since it is larger than the sum of its proper divisors (1608900484).

2145200636 is a wasteful number, since it uses less digits than its factorization.

2145200636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536300163 (or 536300161 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2145200636 is about 46316.3106907275. The cubic root of 2145200636 is about 1289.7017991490.

The spelling of 2145200636 in words is "two billion, one hundred forty-five million, two hundred thousand, six hundred thirty-six".