32100145 has 48 divisors (see below), whose sum is σ = 50200128. Its totient is φ = 19474560.

The previous prime is 32100121. The next prime is 32100151. The reversal of 32100145 is 54100123.

It is not a de Polignac number, because 32100145 - 2⁷ = 32100017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115747 + ... + 116023.

It is an arithmetic number, because the mean of its divisors is an integer number (1045836).

Almost surely, 2^32100145 is an apocalyptic number.

32100145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

32100145 is a deficient number, since it is larger than the sum of its proper divisors (18099983).

32100145 is a wasteful number, since it uses less digits than its factorization.

32100145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 32100145 is about 5665.6989860034. The cubic root of 32100145 is about 317.8110535851.

Adding to 32100145 its reverse (54100123), we get a palindrome (86200268).

The spelling of 32100145 in words is "thirty-two million, one hundred thousand, one hundred forty-five".