1545506345 has 8 divisors (see below), whose sum is σ = 1880729280. Its totient is φ = 1218990640.

The previous prime is 1545506269. The next prime is 1545506351. The reversal of 1545506345 is 5436055451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1545506345 - 2¹⁸ = 1545244201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1545506299 and 1545506308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2176415 + ... + 2177124.

It is an arithmetic number, because the mean of its divisors is an integer number (235091160).

Almost surely, 2^1545506345 is an apocalyptic number.

It is an amenable number.

1545506345 is a deficient number, since it is larger than the sum of its proper divisors (335222935).

1545506345 is an equidigital number, since it uses as much as digits as its factorization.

1545506345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353615.

The product of its (nonzero) digits is 180000, while the sum is 38.

The square root of 1545506345 is about 39312.9284714329. The cubic root of 1545506345 is about 1156.1750614398.

The spelling of 1545506345 in words is "one billion, five hundred forty-five million, five hundred six thousand, three hundred forty-five".