23154755 has 16 divisors (see below), whose sum is σ = 30227904. Its totient is φ = 16924800.

The previous prime is 23154751. The next prime is 23154757. The reversal of 23154755 is 55745132.

It is not a de Polignac number, because 23154755 - 2² = 23154751 is a prime.

It is a super-2 number, since 2×23154755² = 1072285358220050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23154751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4802 + ... + 8328.

It is an arithmetic number, because the mean of its divisors is an integer number (1889244).

Almost surely, 2^23154755 is an apocalyptic number.

23154755 is a deficient number, since it is larger than the sum of its proper divisors (7073149).

23154755 is a wasteful number, since it uses less digits than its factorization.

23154755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646.

The product of its digits is 21000, while the sum is 32.

The square root of 23154755 is about 4811.9387984470. The cubic root of 23154755 is about 285.0231026722.

Adding to 23154755 its reverse (55745132), we get a palindrome (78899887).

The spelling of 23154755 in words is "twenty-three million, one hundred fifty-four thousand, seven hundred fifty-five".