1187506 has 8 divisors (see below), whose sum is σ = 1788444. Its totient is φ = 591360.

The previous prime is 1187489. The next prime is 1187507. The reversal of 1187506 is 6057811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1092025 + 95481 = 1045^2 + 309^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1187507) 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, 495 + ... + 1618.

2^1187506 is an apocalyptic number.

1187506 is a deficient number, since it is larger than the sum of its proper divisors (600938).

1187506 is a wasteful number, since it uses less digits than its factorization.

1187506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1187506 is about 1089.7274888705. The cubic root of 1187506 is about 105.8957679565.

The spelling of 1187506 in words is "one million, one hundred eighty-seven thousand, five hundred six".