145451213 has 8 divisors (see below), whose sum is σ = 153225120. Its totient is φ = 137689200.

The previous prime is 145451197. The next prime is 145451219. The reversal of 145451213 is 312154541.

145451213 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 not a de Polignac number, because 145451213 - 2⁴ = 145451197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145451219) 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, 34106 + ... + 38132.

It is an arithmetic number, because the mean of its divisors is an integer number (19153140).

Almost surely, 2^145451213 is an apocalyptic number.

It is an amenable number.

145451213 is a deficient number, since it is larger than the sum of its proper divisors (7773907).

145451213 is a wasteful number, since it uses less digits than its factorization.

145451213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5947.

The product of its digits is 2400, while the sum is 26.

The square root of 145451213 is about 12060.3156260522. The cubic root of 145451213 is about 525.9031625478.

The spelling of 145451213 in words is "one hundred forty-five million, four hundred fifty-one thousand, two hundred thirteen".