145242013 has 8 divisors (see below), whose sum is σ = 166624128. Its totient is φ = 124018224.

The previous prime is 145242001. The next prime is 145242029. The reversal of 145242013 is 310242541.

145242013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 145242013 - 2¹³ = 145233821 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 (145242043) 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, 37606 + ... + 41287.

It is an arithmetic number, because the mean of its divisors is an integer number (20828016).

Almost surely, 2^145242013 is an apocalyptic number.

It is an amenable number.

145242013 is a deficient number, since it is larger than the sum of its proper divisors (21382115).

145242013 is an equidigital number, since it uses as much as digits as its factorization.

145242013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79163.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 145242013 is about 12051.6394320441. The cubic root of 145242013 is about 525.6509090541.

Adding to 145242013 its reverse (310242541), we get a palindrome (455484554).

The spelling of 145242013 in words is "one hundred forty-five million, two hundred forty-two thousand, thirteen".