1187601 has 8 divisors (see below), whose sum is σ = 1591200. Its totient is φ = 787872.

The previous prime is 1187587. The next prime is 1187623. The reversal of 1187601 is 1067811.

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

It is not a de Polignac number, because 1187601 - 2⁹ = 1187089 is a prime.

It is a super-2 number, since 2×1187601² = 2820792270402, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1187201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151 + ... + 1548.

It is an arithmetic number, because the mean of its divisors is an integer number (198900).

2^1187601 is an apocalyptic number.

It is an amenable number.

1187601 is a deficient number, since it is larger than the sum of its proper divisors (403599).

1187601 is a wasteful number, since it uses less digits than its factorization.

1187601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 1187601 is about 1089.7710768781. The cubic root of 1187601 is about 105.8985917541.

The spelling of 1187601 in words is "one million, one hundred eighty-seven thousand, six hundred one".