1155420004 has 6 divisors (see below), whose sum is σ = 2021985014. Its totient is φ = 577710000.

The previous prime is 1155419999. The next prime is 1155420023. The reversal of 1155420004 is 4000245511.

It can be written as a sum of positive squares in only one way, i.e., 1149888100 + 5531904 = 33910^2 + 2352^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144427497 + ... + 144427504.

Almost surely, 2^1155420004 is an apocalyptic number.

It is an amenable number.

1155420004 is a deficient number, since it is larger than the sum of its proper divisors (866565010).

1155420004 is a wasteful number, since it uses less digits than its factorization.

1155420004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288855005 (or 288855003 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1155420004 is about 33991.4695769394. The cubic root of 1155420004 is about 1049.3329108153.

Adding to 1155420004 its reverse (4000245511), we get a palindrome (5155665515).

The spelling of 1155420004 in words is "one billion, one hundred fifty-five million, four hundred twenty thousand, four".