661492114 has 8 divisors (see below), whose sum is σ = 1016439228. Its totient is φ = 322679040.

The previous prime is 661492109. The next prime is 661492123. The reversal of 661492114 is 411294166.

It is a happy number.

661492114 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 657153225 + 4338889 = 25635^2 + 2083^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 661492114.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4033407 + ... + 4033570.

Almost surely, 2^661492114 is an apocalyptic number.

661492114 is a deficient number, since it is larger than the sum of its proper divisors (354947114).

661492114 is a wasteful number, since it uses less digits than its factorization.

661492114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8067020.

The product of its digits is 10368, while the sum is 34.

The square root of 661492114 is about 25719.4889918132. The cubic root of 661492114 is about 871.3143975806.

The spelling of 661492114 in words is "six hundred sixty-one million, four hundred ninety-two thousand, one hundred fourteen".