145111522 has 4 divisors (see below), whose sum is σ = 217667286. Its totient is φ = 72555760.

The previous prime is 145111487. The next prime is 145111523. The reversal of 145111522 is 225111541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 101828281 + 43283241 = 10091^2 + 6579^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145111493 and 145111502.

It is not an unprimeable number, because it can be changed into a prime (145111523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36277879 + ... + 36277882.

Almost surely, 2^145111522 is an apocalyptic number.

145111522 is a deficient number, since it is larger than the sum of its proper divisors (72555764).

145111522 is an equidigital number, since it uses as much as digits as its factorization.

145111522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72555763.

The product of its digits is 400, while the sum is 22.

The square root of 145111522 is about 12046.2243877491. The cubic root of 145111522 is about 525.4934402343.

The spelling of 145111522 in words is "one hundred forty-five million, one hundred eleven thousand, five hundred twenty-two".