83149706 has 4 divisors (see below), whose sum is σ = 124724562. Its totient is φ = 41574852.

The previous prime is 83149697. The next prime is 83149709. The reversal of 83149706 is 60794138.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68641225 + 14508481 = 8285^2 + 3809^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 83149706.

It is not an unprimeable number, because it can be changed into a prime (83149709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20787425 + ... + 20787428.

Almost surely, 2^83149706 is an apocalyptic number.

83149706 is a deficient number, since it is larger than the sum of its proper divisors (41574856).

83149706 is a wasteful number, since it uses less digits than its factorization.

83149706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41574855.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 83149706 is about 9118.6460617791. The cubic root of 83149706 is about 436.4691699268.

The spelling of 83149706 in words is "eighty-three million, one hundred forty-nine thousand, seven hundred six".