23098551 has 12 divisors (see below), whose sum is σ = 35826552. Its totient is φ = 13199088.

The previous prime is 23098541. The next prime is 23098553. The reversal of 23098551 is 15589032.

It is not a de Polignac number, because 23098551 - 2⁶ = 23098487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23098553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78420 + ... + 78713.

It is an arithmetic number, because the mean of its divisors is an integer number (2985546).

Almost surely, 2^23098551 is an apocalyptic number.

23098551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23098551 is a deficient number, since it is larger than the sum of its proper divisors (12728001).

23098551 is a wasteful number, since it uses less digits than its factorization.

23098551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157150 (or 157143 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 23098551 is about 4806.0951925654. The cubic root of 23098551 is about 284.7923017359.

The spelling of 23098551 in words is "twenty-three million, ninety-eight thousand, five hundred fifty-one".