3154861 has 4 divisors (see below), whose sum is σ = 3159324. Its totient is φ = 3150400.

The previous prime is 3154849. The next prime is 3154871. The reversal of 3154861 is 1684513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1684513 = 17 ⋅99089.

It can be written as a sum of positive squares in 2 ways, for example, as 1729225 + 1425636 = 1315^2 + 1194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3154861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3154831) 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, 910 + ... + 2671.

It is an arithmetic number, because the mean of its divisors is an integer number (789831).

Almost surely, 2^3154861 is an apocalyptic number.

It is an amenable number.

3154861 is a deficient number, since it is larger than the sum of its proper divisors (4463).

3154861 is an equidigital number, since it uses as much as digits as its factorization.

3154861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462.

The product of its digits is 2880, while the sum is 28.

The square root of 3154861 is about 1776.1928386299. The cubic root of 3154861 is about 146.6650866451.

The spelling of 3154861 in words is "three million, one hundred fifty-four thousand, eight hundred sixty-one".