1194222545 has 16 divisors (see below), whose sum is σ = 1558379088. Its totient is φ = 874874880.

The previous prime is 1194222521. The next prime is 1194222551. The reversal of 1194222545 is 5452224911.

It can be written as a sum of positive squares in 8 ways, for example, as 344325136 + 849897409 = 18556^2 + 29153^2 .

It is not a de Polignac number, because 1194222545 - 2¹² = 1194218449 is a prime.

It is a Duffinian number.

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, 186716 + ... + 193005.

It is an arithmetic number, because the mean of its divisors is an integer number (97398693).

Almost surely, 2^1194222545 is an apocalyptic number.

It is an amenable number.

1194222545 is a deficient number, since it is larger than the sum of its proper divisors (364156543).

1194222545 is a wasteful number, since it uses less digits than its factorization.

1194222545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379780.

The product of its digits is 28800, while the sum is 35.

The square root of 1194222545 is about 34557.5251573373. The cubic root of 1194222545 is about 1060.9504187910.

The spelling of 1194222545 in words is "one billion, one hundred ninety-four million, two hundred twenty-two thousand, five hundred forty-five".