145513522 has 16 divisors (see below), whose sum is σ = 272129472. Its totient is φ = 56693520.

The previous prime is 145513517. The next prime is 145513553. The reversal of 145513522 is 225315541.

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, 472293 + ... + 472600.

It is an arithmetic number, because the mean of its divisors is an integer number (17008092).

Almost surely, 2^145513522 is an apocalyptic number.

145513522 is a deficient number, since it is larger than the sum of its proper divisors (126615950).

145513522 is a wasteful number, since it uses less digits than its factorization.

145513522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944913.

The product of its digits is 6000, while the sum is 28.

The square root of 145513522 is about 12062.8985737260. The cubic root of 145513522 is about 525.9782480270.

The spelling of 145513522 in words is "one hundred forty-five million, five hundred thirteen thousand, five hundred twenty-two".