1377533109 has 4 divisors (see below), whose sum is σ = 1836710816. Its totient is φ = 918355404.

The previous prime is 1377533099. The next prime is 1377533111. The reversal of 1377533109 is 9013357731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1377533109 - 2¹³ = 1377524917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377533119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229588849 + ... + 229588854.

It is an arithmetic number, because the mean of its divisors is an integer number (459177704).

Almost surely, 2^1377533109 is an apocalyptic number.

It is an amenable number.

1377533109 is a deficient number, since it is larger than the sum of its proper divisors (459177707).

1377533109 is an equidigital number, since it uses as much as digits as its factorization.

1377533109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459177706.

The product of its (nonzero) digits is 59535, while the sum is 39.

The square root of 1377533109 is about 37115.1331534726. The cubic root of 1377533109 is about 1112.6724850433.

The spelling of 1377533109 in words is "one billion, three hundred seventy-seven million, five hundred thirty-three thousand, one hundred nine".