145046211251 has 4 divisors (see below), whose sum is σ = 147782932272. Its totient is φ = 142309490232.

The previous prime is 145046211203. The next prime is 145046211281. The reversal of 145046211251 is 152112640541.

It is a happy number.

145046211251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145046211251 - 2¹⁸ = 145045949107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145046211281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1368360431 + ... + 1368360536.

It is an arithmetic number, because the mean of its divisors is an integer number (36945733068).

Almost surely, 2^145046211251 is an apocalyptic number.

145046211251 is a deficient number, since it is larger than the sum of its proper divisors (2736721021).

145046211251 is an equidigital number, since it uses as much as digits as its factorization.

145046211251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736721020.

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 145046211251 its reverse (152112640541), we get a palindrome (297158851792).

The spelling of 145046211251 in words is "one hundred forty-five billion, forty-six million, two hundred eleven thousand, two hundred fifty-one".