3156434 has 4 divisors (see below), whose sum is σ = 4734654. Its totient is φ = 1578216.

The previous prime is 3156431. The next prime is 3156443. The reversal of 3156434 is 4346513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4346513 = 47 ⋅92479.

It can be written as a sum of positive squares in only one way, i.e., 3115225 + 41209 = 1765^2 + 203^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3156431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 789107 + ... + 789110.

Almost surely, 2^3156434 is an apocalyptic number.

3156434 is a deficient number, since it is larger than the sum of its proper divisors (1578220).

3156434 is a wasteful number, since it uses less digits than its factorization.

3156434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578219.

The product of its digits is 4320, while the sum is 26.

The square root of 3156434 is about 1776.6355844686. The cubic root of 3156434 is about 146.6894581202.

It can be divided in two parts, 31 and 56434, that added together give a palindrome (56465).

The spelling of 3156434 in words is "three million, one hundred fifty-six thousand, four hundred thirty-four".