32145961 has 4 divisors (see below), whose sum is σ = 32168592. Its totient is φ = 32123332.

The previous prime is 32145947. The next prime is 32145989. The reversal of 32145961 is 16954123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16954123 = 3727 ⋅4549.

It is a cyclic number.

It is not a de Polignac number, because 32145961 - 2¹⁷ = 32014889 is a prime.

It is a super-2 number, since 2×32145961² = 2066725617227042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32145161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9031 + ... + 12076.

It is an arithmetic number, because the mean of its divisors is an integer number (8042148).

Almost surely, 2^32145961 is an apocalyptic number.

It is an amenable number.

32145961 is a deficient number, since it is larger than the sum of its proper divisors (22631).

32145961 is a wasteful number, since it uses less digits than its factorization.

32145961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22630.

The product of its digits is 6480, while the sum is 31.

The square root of 32145961 is about 5669.7408230006. The cubic root of 32145961 is about 317.9621838396.

The spelling of 32145961 in words is "thirty-two million, one hundred forty-five thousand, nine hundred sixty-one".