1545869604 has 12 divisors (see below), whose sum is σ = 3607029104. Its totient is φ = 515289864.

The previous prime is 1545869599. The next prime is 1545869641. The reversal of 1545869604 is 4069685451.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1545869604² = 4779425665142233632, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64411222 + ... + 64411245.

Almost surely, 2^1545869604 is an apocalyptic number.

It is an amenable number.

1545869604 is an abundant number, since it is smaller than the sum of its proper divisors (2061159500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1545869604 is a wasteful number, since it uses less digits than its factorization.

1545869604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128822474 (or 128822472 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 1545869604 is about 39317.5482958945. The cubic root of 1545869604 is about 1156.2656376010.

The spelling of 1545869604 in words is "one billion, five hundred forty-five million, eight hundred sixty-nine thousand, six hundred four".