23146477 has 4 divisors (see below), whose sum is σ = 23358940. Its totient is φ = 22934016.

The previous prime is 23146463. The next prime is 23146481. The reversal of 23146477 is 77464132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17089956 + 6056521 = 4134^2 + 2461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23146477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23146177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106068 + ... + 106285.

It is an arithmetic number, because the mean of its divisors is an integer number (5839735).

Almost surely, 2^23146477 is an apocalyptic number.

It is an amenable number.

23146477 is a deficient number, since it is larger than the sum of its proper divisors (212463).

23146477 is a wasteful number, since it uses less digits than its factorization.

23146477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212462.

The product of its digits is 28224, while the sum is 34.

The square root of 23146477 is about 4811.0785693023. The cubic root of 23146477 is about 284.9891326522.

The spelling of 23146477 in words is "twenty-three million, one hundred forty-six thousand, four hundred seventy-seven".