145752213 has 8 divisors (see below), whose sum is σ = 199588768. Its totient is φ = 94541904.

The previous prime is 145752199. The next prime is 145752227. The reversal of 145752213 is 312257541.

It is an interprime number because it is at equal distance from previous prime (145752199) and next prime (145752227).

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

It is not a de Polignac number, because 145752213 - 2⁴ = 145752197 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 (145752613) 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, 656431 + ... + 656652.

It is an arithmetic number, because the mean of its divisors is an integer number (24948596).

Almost surely, 2^145752213 is an apocalyptic number.

It is an amenable number.

145752213 is a deficient number, since it is larger than the sum of its proper divisors (53836555).

145752213 is a wasteful number, since it uses less digits than its factorization.

145752213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313123.

The product of its digits is 8400, while the sum is 30.

The square root of 145752213 is about 12072.7881203970. The cubic root of 145752213 is about 526.2656845226.

The spelling of 145752213 in words is "one hundred forty-five million, seven hundred fifty-two thousand, two hundred thirteen".