145014401 has 4 divisors (see below), whose sum is σ = 165730752. Its totient is φ = 124298052.

The previous prime is 145014383. The next prime is 145014407. The reversal of 145014401 is 104410541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104410541 = 71 ⋅1470571.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145014401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145014407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10358165 + ... + 10358178.

It is an arithmetic number, because the mean of its divisors is an integer number (41432688).

Almost surely, 2^145014401 is an apocalyptic number.

It is an amenable number.

145014401 is a deficient number, since it is larger than the sum of its proper divisors (20716351).

145014401 is an equidigital number, since it uses as much as digits as its factorization.

145014401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20716350.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 145014401 is about 12042.1925329236. The cubic root of 145014401 is about 525.3761790687.

Adding to 145014401 its reverse (104410541), we get a palindrome (249424942).

It can be divided in two parts, 1450 and 14401, that added together give a palindrome (15851).

The spelling of 145014401 in words is "one hundred forty-five million, fourteen thousand, four hundred one".