2135377091 has 4 divisors (see below), whose sum is σ = 2141496000. Its totient is φ = 2129258184.

The previous prime is 2135377019. The next prime is 2135377103. The reversal of 2135377091 is 1907735312.

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 2135377091 - 2²² = 2131182787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2135374091) 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, 3058931 + ... + 3059628.

It is an arithmetic number, because the mean of its divisors is an integer number (535374000).

Almost surely, 2^2135377091 is an apocalyptic number.

2135377091 is a deficient number, since it is larger than the sum of its proper divisors (6118909).

2135377091 is an equidigital number, since it uses as much as digits as its factorization.

2135377091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6118908.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 2135377091 is about 46210.1405645990. The cubic root of 2135377091 is about 1287.7301370872.

The spelling of 2135377091 in words is "two billion, one hundred thirty-five million, three hundred seventy-seven thousand, ninety-one".