3151820061 has 24 divisors (see below), whose sum is σ = 4985940960. Its totient is φ = 1906703136.

The previous prime is 3151820057. The next prime is 3151820071. The reversal of 3151820061 is 1600281513.

It is not a de Polignac number, because 3151820061 - 2² = 3151820057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3151820011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221391 + ... + 235196.

It is an arithmetic number, because the mean of its divisors is an integer number (207747540).

Almost surely, 2^3151820061 is an apocalyptic number.

It is an amenable number.

3151820061 is a deficient number, since it is larger than the sum of its proper divisors (1834120899).

3151820061 is a wasteful number, since it uses less digits than its factorization.

3151820061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456665 (or 456662 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 3151820061 is about 56141.0728522354. The cubic root of 3151820061 is about 1466.1794849255.

The spelling of 3151820061 in words is "three billion, one hundred fifty-one million, eight hundred twenty thousand, sixty-one".