145125415 has 12 divisors (see below), whose sum is σ = 179955432. Its totient is φ = 112351440.

The previous prime is 145125403. The next prime is 145125443. The reversal of 145125415 is 514521541.

It is a de Polignac number, because none of the positive numbers 2^k-145125415 is a prime.

It is a super-2 number, since 2×145125415² = 42122772157844450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10297 + ... + 19906.

It is an arithmetic number, because the mean of its divisors is an integer number (14996286).

Almost surely, 2^145125415 is an apocalyptic number.

145125415 is a deficient number, since it is larger than the sum of its proper divisors (34830017).

145125415 is an equidigital number, since it uses as much as digits as its factorization.

145125415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30270 (or 30239 counting only the distinct ones).

The product of its digits is 4000, while the sum is 28.

The square root of 145125415 is about 12046.8010276588. The cubic root of 145125415 is about 525.5102099740.

Adding to 145125415 its reverse (514521541), we get a palindrome (659646956).

The spelling of 145125415 in words is "one hundred forty-five million, one hundred twenty-five thousand, four hundred fifteen".