123455001 has 8 divisors (see below), whose sum is σ = 170282880. Its totient is φ = 79465232.

The previous prime is 123454999. The next prime is 123455009. The reversal of 123455001 is 100554321.

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 123455001 - 2¹ = 123454999 is a prime.

It is a super-2 number, since 2×123455001² = 30482274543820002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123455009) 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, 709425 + ... + 709598.

It is an arithmetic number, because the mean of its divisors is an integer number (21285360).

Almost surely, 2^123455001 is an apocalyptic number.

It is an amenable number.

123455001 is a deficient number, since it is larger than the sum of its proper divisors (46827879).

123455001 is a wasteful number, since it uses less digits than its factorization.

123455001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419055.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 123455001 is about 11111.0306002639. The cubic root of 123455001 is about 497.9314553810.

The spelling of 123455001 in words is "one hundred twenty-three million, four hundred fifty-five thousand, one".