1545504897 has 24 divisors (see below), whose sum is σ = 2195328096. Its totient is φ = 966913344.

The previous prime is 1545504889. The next prime is 1545504899. The reversal of 1545504897 is 7984055451.

It is a happy number.

It is not a de Polignac number, because 1545504897 - 2³ = 1545504889 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1545504899) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109213 + ... + 122549.

It is an arithmetic number, because the mean of its divisors is an integer number (91472004).

Almost surely, 2^1545504897 is an apocalyptic number.

It is an amenable number.

1545504897 is a deficient number, since it is larger than the sum of its proper divisors (649823199).

1545504897 is a wasteful number, since it uses less digits than its factorization.

1545504897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13485 (or 13466 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 48.

The square root of 1545504897 is about 39312.9100550951. The cubic root of 1545504897 is about 1156.1747003624.

The spelling of 1545504897 in words is "one billion, five hundred forty-five million, five hundred four thousand, eight hundred ninety-seven".