145013439 has 8 divisors (see below), whose sum is σ = 194538112. Its totient is φ = 96082200.

The previous prime is 145013437. The next prime is 145013441. The reversal of 145013439 is 934310541.

It is an interprime number because it is at equal distance from previous prime (145013437) and next prime (145013441).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145013439 - 2¹ = 145013437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145013431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147787 + ... + 148764.

It is an arithmetic number, because the mean of its divisors is an integer number (24317264).

Almost surely, 2^145013439 is an apocalyptic number.

145013439 is a deficient number, since it is larger than the sum of its proper divisors (49524673).

145013439 is a wasteful number, since it uses less digits than its factorization.

145013439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296717.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 145013439 is about 12042.1525899650. The cubic root of 145013439 is about 525.3750173151.

The spelling of 145013439 in words is "one hundred forty-five million, thirteen thousand, four hundred thirty-nine".