165313401 has 8 divisors (see below), whose sum is σ = 240455904. Its totient is φ = 100189920.

The previous prime is 165313399. The next prime is 165313403. The reversal of 165313401 is 104313561.

It is an interprime number because it is at equal distance from previous prime (165313399) and next prime (165313403).

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

It is not a de Polignac number, because 165313401 - 2¹ = 165313399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165313403) 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, 2504716 + ... + 2504781.

It is an arithmetic number, because the mean of its divisors is an integer number (30056988).

Almost surely, 2^165313401 is an apocalyptic number.

165313401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

165313401 is a deficient number, since it is larger than the sum of its proper divisors (75142503).

165313401 is a wasteful number, since it uses less digits than its factorization.

165313401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009511.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 165313401 is about 12857.4259087891. The cubic root of 165313401 is about 548.8276969977.

Adding to 165313401 its reverse (104313561), we get a palindrome (269626962).

The spelling of 165313401 in words is "one hundred sixty-five million, three hundred thirteen thousand, four hundred one".