83119945 has 16 divisors (see below), whose sum is σ = 105978960. Its totient is φ = 62463744.

The previous prime is 83119937. The next prime is 83119951. The reversal of 83119945 is 54991138.

It can be written as a sum of positive squares in 8 ways, for example, as 1108809 + 82011136 = 1053^2 + 9056^2 .

It is a cyclic number.

It is not a de Polignac number, because 83119945 - 2³ = 83119937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83119898 and 83119907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2382 + ... + 13111.

It is an arithmetic number, because the mean of its divisors is an integer number (6623685).

Almost surely, 2^83119945 is an apocalyptic number.

It is an amenable number.

83119945 is a deficient number, since it is larger than the sum of its proper divisors (22859015).

83119945 is a wasteful number, since it uses less digits than its factorization.

83119945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15564.

The product of its digits is 38880, while the sum is 40.

The square root of 83119945 is about 9117.0140396952. The cubic root of 83119945 is about 436.4170899309.

The spelling of 83119945 in words is "eighty-three million, one hundred nineteen thousand, nine hundred forty-five".