23898145 has 8 divisors (see below), whose sum is σ = 28710504. Its totient is φ = 19096704.

The previous prime is 23898139. The next prime is 23898151. The reversal of 23898145 is 54189832.

It is an interprime number because it is at equal distance from previous prime (23898139) and next prime (23898151).

It can be written as a sum of positive squares in 4 ways, for example, as 7349521 + 16548624 = 2711^2 + 4068^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23898145 - 2⁵ = 23898113 is a prime.

It is a super-2 number, since 2×23898145² = 1142242668882050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23898098 and 23898107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3307 + ... + 7663.

It is an arithmetic number, because the mean of its divisors is an integer number (3588813).

Almost surely, 2^23898145 is an apocalyptic number.

It is an amenable number.

23898145 is a deficient number, since it is larger than the sum of its proper divisors (4812359).

23898145 is a wasteful number, since it uses less digits than its factorization.

23898145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5459.

The product of its digits is 69120, while the sum is 40.

The square root of 23898145 is about 4888.5729001417. The cubic root of 23898145 is about 288.0412789662.

The spelling of 23898145 in words is "twenty-three million, eight hundred ninety-eight thousand, one hundred forty-five".