145511253 has 12 divisors (see below), whose sum is σ = 221245440. Its totient is φ = 91901736.

The previous prime is 145511239. The next prime is 145511273. The reversal of 145511253 is 352115541.

145511253 is a `hidden beast` number, since 145 + 511 + 2 + 5 + 3 = 666.

It is not a de Polignac number, because 145511253 - 2⁸ = 145510997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145511213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425301 + ... + 425642.

It is an arithmetic number, because the mean of its divisors is an integer number (18437120).

Almost surely, 2^145511253 is an apocalyptic number.

It is an amenable number.

145511253 is a deficient number, since it is larger than the sum of its proper divisors (75734187).

145511253 is a wasteful number, since it uses less digits than its factorization.

145511253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850968 (or 850965 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 145511253 is about 12062.8045246535. The cubic root of 145511253 is about 525.9755141440.

Adding to 145511253 its reverse (352115541), we get a palindrome (497626794).

The spelling of 145511253 in words is "one hundred forty-five million, five hundred eleven thousand, two hundred fifty-three".