145325439 has 12 divisors (see below), whose sum is σ = 239902416. Its totient is φ = 83043072.

The previous prime is 145325429. The next prime is 145325459. The reversal of 145325439 is 934523541.

It is not a de Polignac number, because 145325439 - 2¹¹ = 145323391 is a prime.

It is a super-2 number, since 2×145325439² = 42238966441085442, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145325419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1153314 + ... + 1153439.

It is an arithmetic number, because the mean of its divisors is an integer number (19991868).

Almost surely, 2^145325439 is an apocalyptic number.

145325439 is a deficient number, since it is larger than the sum of its proper divisors (94576977).

145325439 is a wasteful number, since it uses less digits than its factorization.

145325439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306766 (or 2306763 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 145325439 is about 12055.1001240139. The cubic root of 145325439 is about 525.7515331969.

The spelling of 145325439 in words is "one hundred forty-five million, three hundred twenty-five thousand, four hundred thirty-nine".