661514 has 8 divisors (see below), whose sum is σ = 1134048. Its totient is φ = 283500.

The previous prime is 661513. The next prime is 661517. The reversal of 661514 is 415166.

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 661514.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 661514.

It is not an unprimeable number, because it can be changed into a prime (661513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23612 + ... + 23639.

It is an arithmetic number, because the mean of its divisors is an integer number (141756).

2⁶⁶¹⁵¹⁴ is an apocalyptic number.

661514 is a deficient number, since it is larger than the sum of its proper divisors (472534).

661514 is a wasteful number, since it uses less digits than its factorization.

661514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47260.

The product of its digits is 720, while the sum is 23.

The square root of 661514 is about 813.3351092877. The cubic root of 661514 is about 87.1324006854.

The spelling of 661514 in words is "six hundred sixty-one thousand, five hundred fourteen".