145244425251 has 16 divisors (see below), whose sum is σ = 194189785344. Its totient is φ = 96564615264.

The previous prime is 145244425243. The next prime is 145244425279. The reversal of 145244425251 is 152524442541.

It is not a de Polignac number, because 145244425251 - 2³ = 145244425243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145244425451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2147980 + ... + 2214566.

It is an arithmetic number, because the mean of its divisors is an integer number (12136861584).

Almost surely, 2^145244425251 is an apocalyptic number.

145244425251 is a deficient number, since it is larger than the sum of its proper divisors (48945360093).

145244425251 is a wasteful number, since it uses less digits than its factorization.

145244425251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68570.

The product of its digits is 256000, while the sum is 39.

Adding to 145244425251 its reverse (152524442541), we get a palindrome (297768867792).

The spelling of 145244425251 in words is "one hundred forty-five billion, two hundred forty-four million, four hundred twenty-five thousand, two hundred fifty-one".