165150401 has 8 divisors (see below), whose sum is σ = 181991040. Its totient is φ = 148900752.

The previous prime is 165150383. The next prime is 165150407. The reversal of 165150401 is 104051561.

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

It is not a de Polignac number, because 165150401 - 2¹⁰ = 165149377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165150407) 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, 147161 + ... + 148278.

It is an arithmetic number, because the mean of its divisors is an integer number (22748880).

Almost surely, 2^165150401 is an apocalyptic number.

It is an amenable number.

165150401 is a deficient number, since it is larger than the sum of its proper divisors (16840639).

165150401 is a wasteful number, since it uses less digits than its factorization.

165150401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295495.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 165150401 is about 12851.0855961666. The cubic root of 165150401 is about 548.6472552176.

The spelling of 165150401 in words is "one hundred sixty-five million, one hundred fifty thousand, four hundred one".