1545049 has 9 divisors (see below), whose sum is σ = 1713439. Its totient is φ = 1392160.

The previous prime is 1545043. The next prime is 1545059. The reversal of 1545049 is 9405451.

The square root of 1545049 is 1243.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 27225 + 1517824 = 165^2 + 1232^2 .

It is not a de Polignac number, because 1545049 - 2³ = 1545041 is a prime.

It is a super-4 number, since 4×1545049⁴ (a number of 26 digits) contains 4444 as substring.

It is a Duffinian number.

1545049 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1545041) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13617 + ... + 13729.

2^1545049 is an apocalyptic number.

1545049 is the 1243-rd square number.

1545049 is the 622-nd centered octagonal number.

It is an amenable number.

1545049 is a deficient number, since it is larger than the sum of its proper divisors (168390).

1545049 is an equidigital number, since it uses as much as digits as its factorization.

1545049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The cubic root of 1545049 is about 115.6061005389.

Multiplying 1545049 by its product of nonzero digits (3600), we get a square (5562176400 = 74580²).

The spelling of 1545049 in words is "one million, five hundred forty-five thousand, forty-nine".