1553145122 has 8 divisors (see below), whose sum is σ = 2383897296. Its totient is φ = 758512692.

The previous prime is 1553145107. The next prime is 1553145131. The reversal of 1553145122 is 2215413551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9029828 + ... + 9029999.

It is an arithmetic number, because the mean of its divisors is an integer number (297987162).

Almost surely, 2^1553145122 is an apocalyptic number.

1553145122 is a deficient number, since it is larger than the sum of its proper divisors (830752174).

1553145122 is a wasteful number, since it uses less digits than its factorization.

1553145122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18059872.

The product of its digits is 6000, while the sum is 29.

The square root of 1553145122 is about 39409.9622176931. The cubic root of 1553145122 is about 1158.0767580963.

Adding to 1553145122 its reverse (2215413551), we get a palindrome (3768558673).

The spelling of 1553145122 in words is "one billion, five hundred fifty-three million, one hundred forty-five thousand, one hundred twenty-two".