145315527 has 12 divisors (see below), whose sum is σ = 225387576. Its totient is φ = 83037360.

The previous prime is 145315519. The next prime is 145315531. The reversal of 145315527 is 725513541.

145315527 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145315527 - 2³ = 145315519 is a prime.

It is a super-2 number, since 2×145315527² = 42233204774575458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145315517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 494124 + ... + 494417.

It is an arithmetic number, because the mean of its divisors is an integer number (18782298).

Almost surely, 2^145315527 is an apocalyptic number.

145315527 is a deficient number, since it is larger than the sum of its proper divisors (80072049).

145315527 is an equidigital number, since it uses as much as digits as its factorization.

145315527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988558 (or 988551 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 145315527 is about 12054.6890046985. The cubic root of 145315527 is about 525.7395798694.

The spelling of 145315527 in words is "one hundred forty-five million, three hundred fifteen thousand, five hundred twenty-seven".