1261516 has 12 divisors (see below), whose sum is σ = 2221632. Its totient is φ = 626768.

The previous prime is 1261489. The next prime is 1261523. The reversal of 1261516 is 6151621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220 + ... + 1603.

It is an arithmetic number, because the mean of its divisors is an integer number (185136).

2^1261516 is an apocalyptic number.

It is an amenable number.

1261516 is a deficient number, since it is larger than the sum of its proper divisors (960116).

1261516 is a wasteful number, since it uses less digits than its factorization.

1261516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1998 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 1261516 is about 1123.1722931056. The cubic root of 1261516 is about 108.0515300506.

The spelling of 1261516 in words is "one million, two hundred sixty-one thousand, five hundred sixteen".