145415375 has 16 divisors (see below), whose sum is σ = 207405120. Its totient is φ = 99712800.

The previous prime is 145415359. The next prime is 145415377. The reversal of 145415375 is 573514541.

It is a happy number.

It is not a de Polignac number, because 145415375 - 2⁴ = 145415359 is a prime.

It is a super-2 number, since 2×145415375² = 42291262572781250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145415377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82220 + ... + 83969.

It is an arithmetic number, because the mean of its divisors is an integer number (12962820).

Almost surely, 2^145415375 is an apocalyptic number.

145415375 is a deficient number, since it is larger than the sum of its proper divisors (61989745).

145415375 is an equidigital number, since it uses as much as digits as its factorization.

145415375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166211 (or 166201 counting only the distinct ones).

The product of its digits is 42000, while the sum is 35.

The square root of 145415375 is about 12058.8297525092. The cubic root of 145415375 is about 525.8599662409.

The spelling of 145415375 in words is "one hundred forty-five million, four hundred fifteen thousand, three hundred seventy-five".