3140945 has 4 divisors (see below), whose sum is σ = 3769140. Its totient is φ = 2512752.

The previous prime is 3140933. The next prime is 3140959. The reversal of 3140945 is 5490413.

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 1183744 + 1957201 = 1088^2 + 1399^2 .

It is a cyclic number.

It is not a de Polignac number, because 3140945 - 2⁶ = 3140881 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314090 + ... + 314099.

It is an arithmetic number, because the mean of its divisors is an integer number (942285).

Almost surely, 2^3140945 is an apocalyptic number.

It is an amenable number.

3140945 is a deficient number, since it is larger than the sum of its proper divisors (628195).

3140945 is an equidigital number, since it uses as much as digits as its factorization.

3140945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628194.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 3140945 is about 1772.2711417839. The cubic root of 3140945 is about 146.4491236555.

The spelling of 3140945 in words is "three million, one hundred forty thousand, nine hundred forty-five".