3142405 has 8 divisors (see below), whose sum is σ = 4309632. Its totient is φ = 2154768.

The previous prime is 3142393. The next prime is 3142441. The reversal of 3142405 is 5042413.

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

It is not a de Polignac number, because 3142405 - 2¹³ = 3134213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44857 + ... + 44926.

It is an arithmetic number, because the mean of its divisors is an integer number (538704).

Almost surely, 2^3142405 is an apocalyptic number.

3142405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3142405 is a deficient number, since it is larger than the sum of its proper divisors (1167227).

3142405 is an equidigital number, since it uses as much as digits as its factorization.

3142405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89795.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 3142405 is about 1772.6829947850. The cubic root of 3142405 is about 146.4718113711.

Adding to 3142405 its reverse (5042413), we get a palindrome (8184818).

It can be divided in two parts, 31 and 42405, that added together give a square (42436 = 206²).

The spelling of 3142405 in words is "three million, one hundred forty-two thousand, four hundred five".