145451214 has 20 divisors (see below), whose sum is σ = 325918824. Its totient is φ = 48483684.

The previous prime is 145451197. The next prime is 145451219. The reversal of 145451214 is 412154541.

145451214 is a `hidden beast` number, since 145 + 4 + 512 + 1 + 4 = 666.

145451214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 9 ways as a sum of consecutive naturals, for example, 448762 + ... + 449085.

Almost surely, 2^145451214 is an apocalyptic number.

145451214 is an abundant number, since it is smaller than the sum of its proper divisors (180467610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145451214 is an equidigital number, since it uses as much as digits as its factorization.

145451214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897861 (or 897852 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 145451214 is about 12060.3156675105. The cubic root of 145451214 is about 525.9031637530.

The spelling of 145451214 in words is "one hundred forty-five million, four hundred fifty-one thousand, two hundred fourteen".