1545044451 has 32 divisors (see below), whose sum is σ = 2231846400. Its totient is φ = 947531520.

The previous prime is 1545044437. The next prime is 1545044491. The reversal of 1545044451 is 1544405451.

It is not a de Polignac number, because 1545044451 - 2²⁹ = 1008173539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1545044491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 533730 + ... + 536616.

It is an arithmetic number, because the mean of its divisors is an integer number (69745200).

Almost surely, 2^1545044451 is an apocalyptic number.

1545044451 is a deficient number, since it is larger than the sum of its proper divisors (686801949).

1545044451 is a wasteful number, since it uses less digits than its factorization.

1545044451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179.

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 1545044451 is about 39307.0534510029. The cubic root of 1545044451 is about 1156.0598708131.

The spelling of 1545044451 in words is "one billion, five hundred forty-five million, forty-four thousand, four hundred fifty-one".