3145537 has 4 divisors (see below), whose sum is σ = 3154900. Its totient is φ = 3136176.

The previous prime is 3145529. The next prime is 3145547. The reversal of 3145537 is 7355413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1893376 + 1252161 = 1376^2 + 1119^2 .

It is a cyclic number.

It is not a de Polignac number, because 3145537 - 2³ = 3145529 is a prime.

It is a Duffinian number.

3145537 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3145547) 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, 4158 + ... + 4855.

It is an arithmetic number, because the mean of its divisors is an integer number (788725).

Almost surely, 2^3145537 is an apocalyptic number.

It is an amenable number.

3145537 is a deficient number, since it is larger than the sum of its proper divisors (9363).

3145537 is an equidigital number, since it uses as much as digits as its factorization.

3145537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9362.

The product of its digits is 6300, while the sum is 28.

The square root of 3145537 is about 1773.5661814548. The cubic root of 3145537 is about 146.5204574863.

The spelling of 3145537 in words is "three million, one hundred forty-five thousand, five hundred thirty-seven".