1377106553 has 2 divisors, whose sum is σ = 1377106554. Its totient is φ = 1377106552.

The previous prime is 1377106541. The next prime is 1377106597. The reversal of 1377106553 is 3556017731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1235663104 + 141443449 = 35152^2 + 11893^2 .

It is a cyclic number.

It is not a de Polignac number, because 1377106553 - 2²⁸ = 1108671097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1377106513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688553276 + 688553277.

It is an arithmetic number, because the mean of its divisors is an integer number (688553277).

Almost surely, 2^1377106553 is an apocalyptic number.

It is an amenable number.

1377106553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377106553 is an equidigital number, since it uses as much as digits as its factorization.

1377106553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 1377106553 is about 37109.3863193667. The cubic root of 1377106553 is about 1112.5576260686.

The spelling of 1377106553 in words is "one billion, three hundred seventy-seven million, one hundred six thousand, five hundred fifty-three".