145054105251 has 32 divisors (see below), whose sum is σ = 216840155136. Its totient is φ = 85476384000.

The previous prime is 145054105249. The next prime is 145054105289. The reversal of 145054105251 is 152501450541.

It is a happy number.

It is not a de Polignac number, because 145054105251 - 2¹ = 145054105249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (145054105151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1755711 + ... + 1836471.

It is an arithmetic number, because the mean of its divisors is an integer number (6776254848).

Almost surely, 2^145054105251 is an apocalyptic number.

145054105251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145054105251 is a deficient number, since it is larger than the sum of its proper divisors (71786049885).

145054105251 is a wasteful number, since it uses less digits than its factorization.

145054105251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82283.

The product of its (nonzero) digits is 20000, while the sum is 33.

Adding to 145054105251 its reverse (152501450541), we get a palindrome (297555555792).

The spelling of 145054105251 in words is "one hundred forty-five billion, fifty-four million, one hundred five thousand, two hundred fifty-one".