123055251 has 8 divisors (see below), whose sum is σ = 178989504. Its totient is φ = 74578920.

The previous prime is 123055249. The next prime is 123055277. The reversal of 123055251 is 152550321.

It is a happy number.

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

It is not a de Polignac number, because 123055251 - 2¹ = 123055249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123055201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1864441 + ... + 1864506.

It is an arithmetic number, because the mean of its divisors is an integer number (22373688).

Almost surely, 2^123055251 is an apocalyptic number.

123055251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123055251 is a deficient number, since it is larger than the sum of its proper divisors (55934253).

123055251 is a wasteful number, since it uses less digits than its factorization.

123055251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728961.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 123055251 is about 11093.0271341956. The cubic root of 123055251 is about 497.3934366004.

The spelling of 123055251 in words is "one hundred twenty-three million, fifty-five thousand, two hundred fifty-one".