83020157 has 6 divisors (see below), whose sum is σ = 91253694. Its totient is φ = 75472760.

The previous prime is 83020151. The next prime is 83020181. The reversal of 83020157 is 75102038.

It can be written as a sum of positive squares in only one way, i.e., 78605956 + 4414201 = 8866^2 + 2101^2 .

It is not a de Polignac number, because 83020157 - 2⁴ = 83020141 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 (83020151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 342938 + ... + 343179.

It is an arithmetic number, because the mean of its divisors is an integer number (15208949).

Almost surely, 2^83020157 is an apocalyptic number.

It is an amenable number.

83020157 is a deficient number, since it is larger than the sum of its proper divisors (8233537).

83020157 is a wasteful number, since it uses less digits than its factorization.

83020157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686139 (or 686128 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 83020157 is about 9111.5397710815. The cubic root of 83020157 is about 436.2423760377.

The spelling of 83020157 in words is "eighty-three million, twenty thousand, one hundred fifty-seven".