23197145 has 16 divisors (see below), whose sum is σ = 29033472. Its totient is φ = 17772480.

The previous prime is 23197127. The next prime is 23197151. The reversal of 23197145 is 54179132.

It is not a de Polignac number, because 23197145 - 2¹⁴ = 23180761 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15239 + ... + 16691.

It is an arithmetic number, because the mean of its divisors is an integer number (1814592).

Almost surely, 2^23197145 is an apocalyptic number.

It is an amenable number.

23197145 is a deficient number, since it is larger than the sum of its proper divisors (5836327).

23197145 is a wasteful number, since it uses less digits than its factorization.

23197145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592.

The product of its digits is 7560, while the sum is 32.

The square root of 23197145 is about 4816.3414538423. The cubic root of 23197145 is about 285.1969296578.

The spelling of 23197145 in words is "twenty-three million, one hundred ninety-seven thousand, one hundred forty-five".