145401 has 8 divisors (see below), whose sum is σ = 205344. Its totient is φ = 91200.

The previous prime is 145399. The next prime is 145417. The reversal of 145401 is 104541.

145401 = T₁₁₈ + T₁₁₉ + ... + T₁₃₅.

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

It is not a de Polignac number, because 145401 - 2¹ = 145399 is a prime.

It is a super-2 number, since 2×145401² = 42282901602, which contains 22 as substring.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145401.

It is not an unprimeable number, because it can be changed into a prime (145441) 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, 1375 + ... + 1476.

It is an arithmetic number, because the mean of its divisors is an integer number (25668).

2¹⁴⁵⁴⁰¹ is an apocalyptic number.

It is an amenable number.

145401 is a deficient number, since it is larger than the sum of its proper divisors (59943).

145401 is a wasteful number, since it uses less digits than its factorization.

145401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 145401 is about 381.3148305534. The cubic root of 145401 is about 52.5842637752.

Adding to 145401 its reverse (104541), we get a palindrome (249942).

It can be divided in two parts, 14540 and 1, that added together give a palindrome (14541).

The spelling of 145401 in words is "one hundred forty-five thousand, four hundred one".