119921647 has 4 divisors (see below), whose sum is σ = 120035736. Its totient is φ = 119807560.

The previous prime is 119921623. The next prime is 119921651. The reversal of 119921647 is 746129911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746129911 = 83 ⋅8989517.

It is a cyclic number.

It is not a de Polignac number, because 119921647 - 2¹¹ = 119919599 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 (119921657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55453 + ... + 57574.

It is an arithmetic number, because the mean of its divisors is an integer number (30008934).

Almost surely, 2^119921647 is an apocalyptic number.

119921647 is a deficient number, since it is larger than the sum of its proper divisors (114089).

119921647 is a wasteful number, since it uses less digits than its factorization.

119921647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114088.

The product of its digits is 27216, while the sum is 40.

The square root of 119921647 is about 10950.8742573367. The cubic root of 119921647 is about 493.1350386511.

The spelling of 119921647 in words is "one hundred nineteen million, nine hundred twenty-one thousand, six hundred forty-seven".