145512122 has 16 divisors (see below), whose sum is σ = 260295552. Its totient is φ = 59650800.

The previous prime is 145512121. The next prime is 145512137. The reversal of 145512122 is 221215541.

145512122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (145512121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225629 + ... + 226272.

It is an arithmetic number, because the mean of its divisors is an integer number (16268472).

Almost surely, 2^145512122 is an apocalyptic number.

145512122 is a deficient number, since it is larger than the sum of its proper divisors (114783430).

145512122 is a wasteful number, since it uses less digits than its factorization.

145512122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451933.

The product of its digits is 800, while the sum is 23.

The square root of 145512122 is about 12062.8405444157. The cubic root of 145512122 is about 525.9765611920.

Adding to 145512122 its reverse (221215541), we get a palindrome (366727663).

The spelling of 145512122 in words is "one hundred forty-five million, five hundred twelve thousand, one hundred twenty-two".