145120122 has 24 divisors (see below), whose sum is σ = 359345376. Its totient is φ = 41462856.

The previous prime is 145120121. The next prime is 145120123. The reversal of 145120122 is 221021541.

It is an interprime number because it is at equal distance from previous prime (145120121) and next prime (145120123).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 145120095 and 145120104.

It is not an unprimeable number, because it can be changed into a prime (145120121) 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, 575748 + ... + 575999.

It is an arithmetic number, because the mean of its divisors is an integer number (14972724).

Almost surely, 2^145120122 is an apocalyptic number.

145120122 is an abundant number, since it is smaller than the sum of its proper divisors (214225254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145120122 is a wasteful number, since it uses less digits than its factorization.

145120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151762 (or 1151759 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 145120122 is about 12046.5813407788. The cubic root of 145120122 is about 525.5038211106.

Adding to 145120122 its reverse (221021541), we get a palindrome (366141663).

The spelling of 145120122 in words is "one hundred forty-five million, one hundred twenty thousand, one hundred twenty-two".