1199520417 has 32 divisors (see below), whose sum is σ = 1744404480. Its totient is φ = 731223360.

The previous prime is 1199520379. The next prime is 1199520431. The reversal of 1199520417 is 7140259911.

It is not a de Polignac number, because 1199520417 - 2¹² = 1199516321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1199520457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122028 + ... + 131490.

It is an arithmetic number, because the mean of its divisors is an integer number (54512640).

Almost surely, 2^1199520417 is an apocalyptic number.

It is an amenable number.

1199520417 is a deficient number, since it is larger than the sum of its proper divisors (544884063).

1199520417 is a wasteful number, since it uses less digits than its factorization.

1199520417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9573.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 1199520417 is about 34634.0932752685. The cubic root of 1199520417 is about 1062.5169856016.

The spelling of 1199520417 in words is "one billion, one hundred ninety-nine million, five hundred twenty thousand, four hundred seventeen".