1913611252 has 12 divisors (see below), whose sum is σ = 3827222560. Its totient is φ = 820119096.

The previous prime is 1913611243. The next prime is 1913611253. The reversal of 1913611252 is 2521163191.

1913611252 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913611253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34171602 + ... + 34171657.

Almost surely, 2^1913611252 is an apocalyptic number.

It is an amenable number.

1913611252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1913611252 is a wasteful number, since it uses less digits than its factorization.

1913611252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68343270 (or 68343268 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The square root of 1913611252 is about 43744.8425760112. The cubic root of 1913611252 is about 1241.5129062357.

The spelling of 1913611252 in words is "one billion, nine hundred thirteen million, six hundred eleven thousand, two hundred fifty-two".