145115401 has 8 divisors (see below), whose sum is σ = 147857600. Its totient is φ = 142385040.

The previous prime is 145115393. The next prime is 145115413. The reversal of 145115401 is 104511541.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 145115401 - 2³ = 145115393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145115471) 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, 24070 + ... + 29488.

It is an arithmetic number, because the mean of its divisors is an integer number (18482200).

Almost surely, 2^145115401 is an apocalyptic number.

It is an amenable number.

145115401 is a deficient number, since it is larger than the sum of its proper divisors (2742199).

145115401 is an equidigital number, since it uses as much as digits as its factorization.

145115401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 145115401 is about 12046.3853914774. The cubic root of 145115401 is about 525.4981225431.

Adding to 145115401 its reverse (104511541), we get a palindrome (249626942).

It can be divided in two parts, 14511540 and 1, that added together give a palindrome (14511541).

The spelling of 145115401 in words is "one hundred forty-five million, one hundred fifteen thousand, four hundred one".