145414215 has 12 divisors (see below), whose sum is σ = 252051384. Its totient is φ = 77554224.

The previous prime is 145414189. The next prime is 145414219. The reversal of 145414215 is 512414541.

It is not a de Polignac number, because 145414215 - 2⁵ = 145414183 is a prime.

It is a super-2 number, since 2×145414215² = 42290587848132450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145414219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1615669 + ... + 1615758.

It is an arithmetic number, because the mean of its divisors is an integer number (21004282).

Almost surely, 2^145414215 is an apocalyptic number.

145414215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145414215 is a deficient number, since it is larger than the sum of its proper divisors (106637169).

145414215 is a wasteful number, since it uses less digits than its factorization.

145414215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231438 (or 3231435 counting only the distinct ones).

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

The square root of 145414215 is about 12058.7816548771. The cubic root of 145414215 is about 525.8585679496.

Adding to 145414215 its reverse (512414541), we get a palindrome (657828756).

The spelling of 145414215 in words is "one hundred forty-five million, four hundred fourteen thousand, two hundred fifteen".