238166001 has 12 divisors (see below), whose sum is σ = 356759312. Its totient is φ = 158777172.

The previous prime is 238165913. The next prime is 238166011. The reversal of 238166001 is 100661832.

It is not a de Polignac number, because 238166001 - 2¹¹ = 238163953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238166011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 489811 + ... + 490296.

Almost surely, 2^238166001 is an apocalyptic number.

It is an amenable number.

238166001 is a deficient number, since it is larger than the sum of its proper divisors (118593311).

238166001 is an frugal number, since it uses more digits than its factorization.

238166001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980122 (or 980110 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 238166001 is about 15432.6278060478. The cubic root of 238166001 is about 619.8594903580.

The spelling of 238166001 in words is "two hundred thirty-eight million, one hundred sixty-six thousand, one".