1380537611 has 4 divisors (see below), whose sum is σ = 1392754872. Its totient is φ = 1368320352.

The previous prime is 1380537607. The next prime is 1380537617. The reversal of 1380537611 is 1167350831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1380537611 - 2² = 1380537607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380537617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6108461 + ... + 6108686.

It is an arithmetic number, because the mean of its divisors is an integer number (348188718).

Almost surely, 2^1380537611 is an apocalyptic number.

1380537611 is a deficient number, since it is larger than the sum of its proper divisors (12217261).

1380537611 is a wasteful number, since it uses less digits than its factorization.

1380537611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12217260.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1380537611 is about 37155.5865382314. The cubic root of 1380537611 is about 1113.4808380724.

The spelling of 1380537611 in words is "one billion, three hundred eighty million, five hundred thirty-seven thousand, six hundred eleven".