123861801 has 32 divisors (see below), whose sum is σ = 195880960. Its totient is φ = 68148864.

The previous prime is 123861799. The next prime is 123861811. The reversal of 123861801 is 108168321.

It is not a de Polignac number, because 123861801 - 2¹ = 123861799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123861811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64980 + ... + 66858.

It is an arithmetic number, because the mean of its divisors is an integer number (6121280).

Almost surely, 2^123861801 is an apocalyptic number.

It is an amenable number.

123861801 is a deficient number, since it is larger than the sum of its proper divisors (72019159).

123861801 is a wasteful number, since it uses less digits than its factorization.

123861801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 123861801 is about 11129.3216774429. The cubic root of 123861801 is about 498.4777716782.

The spelling of 123861801 in words is "one hundred twenty-three million, eight hundred sixty-one thousand, eight hundred one".