83545157 has 8 divisors (see below), whose sum is σ = 88614936. Its totient is φ = 78492672.

The previous prime is 83545153. The next prime is 83545183. The reversal of 83545157 is 75154538.

It can be written as a sum of positive squares in 4 ways, for example, as 3818116 + 79727041 = 1954^2 + 8929^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83545157 - 2² = 83545153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83545157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83545151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6413 + ... + 14429.

It is an arithmetic number, because the mean of its divisors is an integer number (11076867).

Almost surely, 2^83545157 is an apocalyptic number.

It is an amenable number.

83545157 is a deficient number, since it is larger than the sum of its proper divisors (5069779).

83545157 is a wasteful number, since it uses less digits than its factorization.

83545157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8647.

The product of its digits is 84000, while the sum is 38.

The square root of 83545157 is about 9140.3039883803. The cubic root of 83545157 is about 437.1600092692.

The spelling of 83545157 in words is "eighty-three million, five hundred forty-five thousand, one hundred fifty-seven".