145151523 has 12 divisors (see below), whose sum is σ = 228723768. Its totient is φ = 87970560.

The previous prime is 145151509. The next prime is 145151527. The reversal of 145151523 is 325151541.

145151523 is a `hidden beast` number, since 145 + 1 + 515 + 2 + 3 = 666.

It is not a de Polignac number, because 145151523 - 2¹² = 145147427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145151527) 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, 732990 + ... + 733187.

It is an arithmetic number, because the mean of its divisors is an integer number (19060314).

Almost surely, 2^145151523 is an apocalyptic number.

145151523 is a deficient number, since it is larger than the sum of its proper divisors (83572245).

145151523 is a wasteful number, since it uses less digits than its factorization.

145151523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466194 (or 1466191 counting only the distinct ones).

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

The square root of 145151523 is about 12047.8845861006. The cubic root of 145151523 is about 525.5417211051.

The spelling of 145151523 in words is "one hundred forty-five million, one hundred fifty-one thousand, five hundred twenty-three".