3145045 has 4 divisors (see below), whose sum is σ = 3774060. Its totient is φ = 2516032.

The previous prime is 3145027. The next prime is 3145049. The reversal of 3145045 is 5405413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5405413 = 13 ⋅415801.

It can be written as a sum of positive squares in 2 ways, for example, as 1483524 + 1661521 = 1218^2 + 1289^2 .

It is a cyclic number.

It is not a de Polignac number, because 3145045 - 2¹⁷ = 3013973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314500 + ... + 314509.

It is an arithmetic number, because the mean of its divisors is an integer number (943515).

Almost surely, 2^3145045 is an apocalyptic number.

It is an amenable number.

3145045 is a deficient number, since it is larger than the sum of its proper divisors (629015).

3145045 is an equidigital number, since it uses as much as digits as its factorization.

3145045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629014.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 3145045 is about 1773.4274724386. The cubic root of 3145045 is about 146.5128178979.

The spelling of 3145045 in words is "three million, one hundred forty-five thousand, forty-five".