1197961 has 8 divisors (see below), whose sum is σ = 1254600. Its totient is φ = 1142400.

The previous prime is 1197953. The next prime is 1197971. The reversal of 1197961 is 1697911.

It can be written as a sum of positive squares in 4 ways, for example, as 783225 + 414736 = 885^2 + 644^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1197961 - 2³ = 1197953 is a prime.

It is a super-2 number, since 2×1197961² = 2870221115042, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1197901) 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, 2725 + ... + 3133.

It is an arithmetic number, because the mean of its divisors is an integer number (156825).

2^1197961 is an apocalyptic number.

It is an amenable number.

1197961 is a deficient number, since it is larger than the sum of its proper divisors (56639).

1197961 is a wasteful number, since it uses less digits than its factorization.

1197961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539.

The product of its digits is 3402, while the sum is 34.

The square root of 1197961 is about 1094.5140474201. The cubic root of 1197961 is about 106.2056349957.

The spelling of 1197961 in words is "one million, one hundred ninety-seven thousand, nine hundred sixty-one".