145515146 has 8 divisors (see below), whose sum is σ = 249454560. Its totient is φ = 62363628.

The previous prime is 145515137. The next prime is 145515169. The reversal of 145515146 is 641515541.

145515146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 5196956 + ... + 5196983.

It is an arithmetic number, because the mean of its divisors is an integer number (31181820).

Almost surely, 2^145515146 is an apocalyptic number.

145515146 is a deficient number, since it is larger than the sum of its proper divisors (103939414).

145515146 is a wasteful number, since it uses less digits than its factorization.

145515146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10393948.

The product of its digits is 12000, while the sum is 32.

The square root of 145515146 is about 12062.9658873761. The cubic root of 145515146 is about 525.9802047421.

The spelling of 145515146 in words is "one hundred forty-five million, five hundred fifteen thousand, one hundred forty-six".