1045897544 has 8 divisors (see below), whose sum is σ = 1961057910. Its totient is φ = 522948768.

The previous prime is 1045897529. The next prime is 1045897547. The reversal of 1045897544 is 4457985401.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 914336644 + 131560900 = 30238^2 + 11470^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1045897547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65368589 + ... + 65368604.

Almost surely, 2^1045897544 is an apocalyptic number.

It is an amenable number.

1045897544 is a deficient number, since it is larger than the sum of its proper divisors (915160366).

1045897544 is a wasteful number, since it uses less digits than its factorization.

1045897544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130737199 (or 130737195 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The square root of 1045897544 is about 32340.3392684740. The cubic root of 1045897544 is about 1015.0709080345.

The spelling of 1045897544 in words is "one billion, forty-five million, eight hundred ninety-seven thousand, five hundred forty-four".