1012122545 has 16 divisors (see below), whose sum is σ = 1388610048. Its totient is φ = 693748800.

The previous prime is 1012122511. The next prime is 1012122593. The reversal of 1012122545 is 5452212101.

It is not a de Polignac number, because 1012122545 - 2¹² = 1012118449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1012122545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123320 + ... + 131270.

It is an arithmetic number, because the mean of its divisors is an integer number (86788128).

Almost surely, 2^1012122545 is an apocalyptic number.

It is an amenable number.

1012122545 is a deficient number, since it is larger than the sum of its proper divisors (376487503).

1012122545 is an equidigital number, since it uses as much as digits as its factorization.

1012122545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11600.

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

The square root of 1012122545 is about 31813.8734674041. The cubic root of 1012122545 is about 1004.0246289652.

Adding to 1012122545 its reverse (5452212101), we get a palindrome (6464334646).

The spelling of 1012122545 in words is "one billion, twelve million, one hundred twenty-two thousand, five hundred forty-five".