145241252 has 12 divisors (see below), whose sum is σ = 273723996. Its totient is φ = 67034400.

The previous prime is 145241207. The next prime is 145241267. The reversal of 145241252 is 252142541.

It can be written as a sum of positive squares in 2 ways, for example, as 8444836 + 136796416 = 2906^2 + 11696^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1396499 + ... + 1396602.

It is an arithmetic number, because the mean of its divisors is an integer number (22810333).

Almost surely, 2^145241252 is an apocalyptic number.

It is an amenable number.

145241252 is a deficient number, since it is larger than the sum of its proper divisors (128482744).

145241252 is a wasteful number, since it uses less digits than its factorization.

145241252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793118 (or 2793116 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 145241252 is about 12051.6078595348. The cubic root of 145241252 is about 525.6499909978.

Adding to 145241252 its reverse (252142541), we get a palindrome (397383793).

The spelling of 145241252 in words is "one hundred forty-five million, two hundred forty-one thousand, two hundred fifty-two".