145564214 has 16 divisors (see below), whose sum is σ = 221967648. Its totient is φ = 71584512.

The previous prime is 145564193. The next prime is 145564229. The reversal of 145564214 is 412465541.

It is a super-3 number, since 3×145564214³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30152 + ... + 34644.

It is an arithmetic number, because the mean of its divisors is an integer number (13872978).

Almost surely, 2^145564214 is an apocalyptic number.

145564214 is a deficient number, since it is larger than the sum of its proper divisors (76403434).

145564214 is a wasteful number, since it uses less digits than its factorization.

145564214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4759.

The product of its digits is 19200, while the sum is 32.

The square root of 145564214 is about 12064.9995441359. Note that the first 3 decimals coincide. The cubic root of 145564214 is about 526.0393186259.

The spelling of 145564214 in words is "one hundred forty-five million, five hundred sixty-four thousand, two hundred fourteen".