145152005 has 4 divisors (see below), whose sum is σ = 174182412. Its totient is φ = 116121600.

The previous prime is 145151987. The next prime is 145152023. The reversal of 145152005 is 500251541.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (145151987) and next prime (145152023).

It can be written as a sum of positive squares in 2 ways, for example, as 59737441 + 85414564 = 7729^2 + 9242^2 .

It is not a de Polignac number, because 145152005 - 2²² = 140957701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14515196 + ... + 14515205.

It is an arithmetic number, because the mean of its divisors is an integer number (43545603).

Almost surely, 2^145152005 is an apocalyptic number.

It is an amenable number.

145152005 is a deficient number, since it is larger than the sum of its proper divisors (29030407).

145152005 is an equidigital number, since it uses as much as digits as its factorization.

145152005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29030406.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 145152005 is about 12047.9045895957. The cubic root of 145152005 is about 525.5423028209.

The spelling of 145152005 in words is "one hundred forty-five million, one hundred fifty-two thousand, five".