1961282013 has 32 divisors (see below), whose sum is σ = 2791895040. Its totient is φ = 1221929280.

The previous prime is 1961282009. The next prime is 1961282041. The reversal of 1961282013 is 3102821691.

It is not a de Polignac number, because 1961282013 - 2² = 1961282009 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961282513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 990058 + ... + 992036.

It is an arithmetic number, because the mean of its divisors is an integer number (87246720).

Almost surely, 2^1961282013 is an apocalyptic number.

It is an amenable number.

1961282013 is a deficient number, since it is larger than the sum of its proper divisors (830613027).

1961282013 is a wasteful number, since it uses less digits than its factorization.

1961282013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1961282013 is about 44286.3637364821. The cubic root of 1961282013 is about 1251.7377458454.

The spelling of 1961282013 in words is "one billion, nine hundred sixty-one million, two hundred eighty-two thousand, thirteen".