1545420122 has 16 divisors (see below), whose sum is σ = 2533669632. Its totient is φ = 703796160.

The previous prime is 1545420101. The next prime is 1545420131. The reversal of 1545420122 is 2210245451.

It is a junction number, because it is equal to n+sod(n) for n = 1545420091 and 1545420100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732068 + ... + 734175.

It is an arithmetic number, because the mean of its divisors is an integer number (158354352).

Almost surely, 2^1545420122 is an apocalyptic number.

1545420122 is a deficient number, since it is larger than the sum of its proper divisors (988249510).

1545420122 is a wasteful number, since it uses less digits than its factorization.

1545420122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466293.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1545420122 is about 39311.8318321596. The cubic root of 1545420122 is about 1156.1535602369.

Adding to 1545420122 its reverse (2210245451), we get a palindrome (3755665573).

The spelling of 1545420122 in words is "one billion, five hundred forty-five million, four hundred twenty thousand, one hundred twenty-two".