3155402 has 4 divisors (see below), whose sum is σ = 4733106. Its totient is φ = 1577700.

The previous prime is 3155389. The next prime is 3155407. The reversal of 3155402 is 2045513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2045513 = 61 ⋅33533.

It can be written as a sum of positive squares in only one way, i.e., 3066001 + 89401 = 1751^2 + 299^2 .

It is not an unprimeable number, because it can be changed into a prime (3155407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 788849 + ... + 788852.

Almost surely, 2^3155402 is an apocalyptic number.

3155402 is a deficient number, since it is larger than the sum of its proper divisors (1577704).

3155402 is a wasteful number, since it uses less digits than its factorization.

3155402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577703.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 3155402 is about 1776.3451241243. The cubic root of 3155402 is about 146.6734696110.

The spelling of 3155402 in words is "three million, one hundred fifty-five thousand, four hundred two".