1197156141 has 12 divisors (see below), whose sum is σ = 1804409568. Its totient is φ = 763403784.

The previous prime is 1197156139. The next prime is 1197156143. The reversal of 1197156141 is 1416517911.

1197156141 is a `hidden beast` number, since 1 + 1 + 97 + 1 + 561 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1197156139) and next prime (1197156143).

It is not a de Polignac number, because 1197156141 - 2¹ = 1197156139 is a prime.

It is a super-3 number, since 3×1197156141³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1197156096 and 1197156105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197156143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2891475 + ... + 2891888.

It is an arithmetic number, because the mean of its divisors is an integer number (150367464).

Almost surely, 2^1197156141 is an apocalyptic number.

It is an amenable number.

1197156141 is a deficient number, since it is larger than the sum of its proper divisors (607253427).

1197156141 is a wasteful number, since it uses less digits than its factorization.

1197156141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5783392 (or 5783389 counting only the distinct ones).

The product of its digits is 7560, while the sum is 36.

The square root of 1197156141 is about 34599.9442340591. The cubic root of 1197156141 is about 1061.8184465198.

The spelling of 1197156141 in words is "one billion, one hundred ninety-seven million, one hundred fifty-six thousand, one hundred forty-one".