3161622146 has 4 divisors (see below), whose sum is σ = 4742433222. Its totient is φ = 1580811072.

The previous prime is 3161622143. The next prime is 3161622181. The reversal of 3161622146 is 6412261613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2179489225 + 982132921 = 46685^2 + 31339^2 .

It is not an unprimeable number, because it can be changed into a prime (3161622143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 790405535 + ... + 790405538.

Almost surely, 2^3161622146 is an apocalyptic number.

3161622146 is a deficient number, since it is larger than the sum of its proper divisors (1580811076).

3161622146 is a wasteful number, since it uses less digits than its factorization.

3161622146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580811075.

The product of its digits is 10368, while the sum is 32.

The square root of 3161622146 is about 56228.3037802138. The cubic root of 3161622146 is about 1467.6978397052.

Adding to 3161622146 its reverse (6412261613), we get a palindrome (9573883759).

The spelling of 3161622146 in words is "three billion, one hundred sixty-one million, six hundred twenty-two thousand, one hundred forty-six".