145122015 has 8 divisors (see below), whose sum is σ = 232195248. Its totient is φ = 77398400.

The previous prime is 145121987. The next prime is 145122031. The reversal of 145122015 is 510221541.

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

It is not a de Polignac number, because 145122015 - 2⁵ = 145121983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145121982 and 145122000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4837386 + ... + 4837415.

It is an arithmetic number, because the mean of its divisors is an integer number (29024406).

Almost surely, 2^145122015 is an apocalyptic number.

145122015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145122015 is a deficient number, since it is larger than the sum of its proper divisors (87073233).

145122015 is an equidigital number, since it uses as much as digits as its factorization.

145122015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9674809.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 145122015 is about 12046.6599105312. The cubic root of 145122015 is about 525.5061060555.

Adding to 145122015 its reverse (510221541), we get a palindrome (655343556).

The spelling of 145122015 in words is "one hundred forty-five million, one hundred twenty-two thousand, fifteen".