2145606136 has 8 divisors (see below), whose sum is σ = 4023011520. Its totient is φ = 1072803064.

The previous prime is 2145606121. The next prime is 2145606143. The reversal of 2145606136 is 6316065412.

It is a tau number, because it is divible by the number of its divisors (8).

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, 134100376 + ... + 134100391.

It is an arithmetic number, because the mean of its divisors is an integer number (502876440).

Almost surely, 2^2145606136 is an apocalyptic number.

It is an amenable number.

2145606136 is a deficient number, since it is larger than the sum of its proper divisors (1877405384).

2145606136 is a wasteful number, since it uses less digits than its factorization.

2145606136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268200773 (or 268200769 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 2145606136 is about 46320.6879914364. The cubic root of 2145606136 is about 1289.7830566815.

The spelling of 2145606136 in words is "two billion, one hundred forty-five million, six hundred six thousand, one hundred thirty-six".