1197445544 has 8 divisors (see below), whose sum is σ = 2245210410. Its totient is φ = 598722768.

The previous prime is 1197445523. The next prime is 1197445559. The reversal of 1197445544 is 4455447911.

It can be written as a sum of positive squares in only one way, i.e., 1141764100 + 55681444 = 33790^2 + 7462^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1197445495 and 1197445504.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74840339 + ... + 74840354.

Almost surely, 2^1197445544 is an apocalyptic number.

It is an amenable number.

1197445544 is a deficient number, since it is larger than the sum of its proper divisors (1047764866).

1197445544 is a wasteful number, since it uses less digits than its factorization.

1197445544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149680699 (or 149680695 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 1197445544 is about 34604.1261123583. The cubic root of 1197445544 is about 1061.9040016881.

The spelling of 1197445544 in words is "one billion, one hundred ninety-seven million, four hundred forty-five thousand, five hundred forty-four".