145627215 has 16 divisors (see below), whose sum is σ = 233310336. Its totient is φ = 77565600.

The previous prime is 145627213. The next prime is 145627249. The reversal of 145627215 is 512726541.

It is not a de Polignac number, because 145627215 - 2¹ = 145627213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145627213) 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 15 ways as a sum of consecutive naturals, for example, 6180 + ... + 18150.

It is an arithmetic number, because the mean of its divisors is an integer number (14581896).

Almost surely, 2^145627215 is an apocalyptic number.

145627215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145627215 is a deficient number, since it is larger than the sum of its proper divisors (87683121).

145627215 is a wasteful number, since it uses less digits than its factorization.

145627215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12790.

The product of its digits is 16800, while the sum is 33.

The square root of 145627215 is about 12067.6101610882. The cubic root of 145627215 is about 526.1151985924.

The spelling of 145627215 in words is "one hundred forty-five million, six hundred twenty-seven thousand, two hundred fifteen".