145452013 has 8 divisors (see below), whose sum is σ = 166568000. Its totient is φ = 124420320.

The previous prime is 145451993. The next prime is 145452037. The reversal of 145452013 is 310254541.

It is a happy number.

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 145452013 - 2¹³ = 145443821 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 (145452113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17328 + ... + 24313.

It is an arithmetic number, because the mean of its divisors is an integer number (20821000).

Almost surely, 2^145452013 is an apocalyptic number.

It is an amenable number.

145452013 is a deficient number, since it is larger than the sum of its proper divisors (21115987).

145452013 is an equidigital number, since it uses as much as digits as its factorization.

145452013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42147.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 145452013 is about 12060.3487926345. The cubic root of 145452013 is about 525.9041267239.

The spelling of 145452013 in words is "one hundred forty-five million, four hundred fifty-two thousand, thirteen".