145215095 has 4 divisors (see below), whose sum is σ = 174258120. Its totient is φ = 116172072.

The previous prime is 145215089. The next prime is 145215113. The reversal of 145215095 is 590512541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145215095 - 2²² = 141020791 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14521505 + ... + 14521514.

It is an arithmetic number, because the mean of its divisors is an integer number (43564530).

Almost surely, 2^145215095 is an apocalyptic number.

145215095 is a deficient number, since it is larger than the sum of its proper divisors (29043025).

145215095 is an equidigital number, since it uses as much as digits as its factorization.

145215095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29043024.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 145215095 is about 12050.5226027754. The cubic root of 145215095 is about 525.6184337276.

The spelling of 145215095 in words is "one hundred forty-five million, two hundred fifteen thousand, ninety-five".