83672145 has 24 divisors (see below), whose sum is σ = 145244736. Its totient is φ = 44559648.

The previous prime is 83672123. The next prime is 83672159. The reversal of 83672145 is 54127638.

It is not a de Polignac number, because 83672145 - 2⁶ = 83672081 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57922 + ... + 59348.

It is an arithmetic number, because the mean of its divisors is an integer number (6051864).

Almost surely, 2^83672145 is an apocalyptic number.

It is an amenable number.

83672145 is a deficient number, since it is larger than the sum of its proper divisors (61572591).

83672145 is a wasteful number, since it uses less digits than its factorization.

83672145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741 (or 2738 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 83672145 is about 9147.2479467871. The cubic root of 83672145 is about 437.3813904320.

The spelling of 83672145 in words is "eighty-three million, six hundred seventy-two thousand, one hundred forty-five".