1954000645 has 16 divisors (see below), whose sum is σ = 2396718720. Its totient is φ = 1528859584.

The previous prime is 1954000637. The next prime is 1954000651. The reversal of 1954000645 is 5460004591.

It is a cyclic number.

It is not a de Polignac number, because 1954000645 - 2³ = 1954000637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1954000645.

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, 41304 + ... + 74926.

It is an arithmetic number, because the mean of its divisors is an integer number (149794920).

Almost surely, 2^1954000645 is an apocalyptic number.

It is an amenable number.

1954000645 is a deficient number, since it is larger than the sum of its proper divisors (442718075).

1954000645 is a wasteful number, since it uses less digits than its factorization.

1954000645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33884.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1954000645 is about 44204.0795063080. The cubic root of 1954000645 is about 1250.1867763570.

The spelling of 1954000645 in words is "one billion, nine hundred fifty-four million, six hundred forty-five", and thus it is an aban number.