1172617461 has 12 divisors (see below), whose sum is σ = 1715222080. Its totient is φ = 771849000.

The previous prime is 1172617423. The next prime is 1172617463. The reversal of 1172617461 is 1647162711.

It is not a de Polignac number, because 1172617461 - 2¹⁰ = 1172616437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172617463) 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, 823915 + ... + 825336.

Almost surely, 2^1172617461 is an apocalyptic number.

It is an amenable number.

1172617461 is a deficient number, since it is larger than the sum of its proper divisors (542604619).

1172617461 is a wasteful number, since it uses less digits than its factorization.

1172617461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649336 (or 1649333 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 1172617461 is about 34243.5024639712. The cubic root of 1172617461 is about 1054.5134391496.

The spelling of 1172617461 in words is "one billion, one hundred seventy-two million, six hundred seventeen thousand, four hundred sixty-one".