1377152101 has 8 divisors (see below), whose sum is σ = 1491864920. Its totient is φ = 1271215296.

The previous prime is 1377152093. The next prime is 1377152137. The reversal of 1377152101 is 1012517731.

It is a Cunningham number, because it is equal to 37110²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 195580225 + 1181571876 = 13985^2 + 34374^2 .

It is not a de Polignac number, because 1377152101 - 2³ = 1377152093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1377152101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377152171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311220 + ... + 315613.

It is an arithmetic number, because the mean of its divisors is an integer number (186483115).

Almost surely, 2^1377152101 is an apocalyptic number.

It is an amenable number.

1377152101 is a deficient number, since it is larger than the sum of its proper divisors (114712819).

1377152101 is an frugal number, since it uses more digits than its factorization.

1377152101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626872 (or 626846 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 1377152101 is about 37110.0000134735. Note that the first 4 decimals coincide. The cubic root of 1377152101 is about 1112.5698919352.

Adding to 1377152101 its reverse (1012517731), we get a palindrome (2389669832).

The spelling of 1377152101 in words is "one billion, three hundred seventy-seven million, one hundred fifty-two thousand, one hundred one".