1377532564 has 6 divisors (see below), whose sum is σ = 2410681994. Its totient is φ = 688766280.

The previous prime is 1377532549. The next prime is 1377532571. The reversal of 1377532564 is 4652357731.

It can be written as a sum of positive squares in only one way, i.e., 1375816464 + 1716100 = 37092^2 + 1310^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1377532564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172191567 + ... + 172191574.

Almost surely, 2^1377532564 is an apocalyptic number.

It is an amenable number.

1377532564 is a deficient number, since it is larger than the sum of its proper divisors (1033149430).

1377532564 is a wasteful number, since it uses less digits than its factorization.

1377532564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344383145 (or 344383143 counting only the distinct ones).

The product of its digits is 529200, while the sum is 43.

The square root of 1377532564 is about 37115.1258114532. The cubic root of 1377532564 is about 1112.6723383060.

The spelling of 1377532564 in words is "one billion, three hundred seventy-seven million, five hundred thirty-two thousand, five hundred sixty-four".