1545945730 has 32 divisors (see below), whose sum is σ = 3234142080. Its totient is φ = 521053440.

The previous prime is 1545945719. The next prime is 1545945757. The reversal of 1545945730 is 375495451.

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 15 ways as a sum of consecutive naturals, for example, 183031 + ... + 191290.

It is an arithmetic number, because the mean of its divisors is an integer number (101066940).

Almost surely, 2^1545945730 is an apocalyptic number.

1545945730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1545945730 is an abundant number, since it is smaller than the sum of its proper divisors (1688196350).

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

1545945730 is a wasteful number, since it uses less digits than its factorization.

1545945730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374394.

The product of its (nonzero) digits is 378000, while the sum is 43.

The square root of 1545945730 is about 39318.5163758756. The cubic root of 1545945730 is about 1156.2846173030.

The spelling of 1545945730 in words is "one billion, five hundred forty-five million, nine hundred forty-five thousand, seven hundred thirty".