2072155634 has 8 divisors (see below), whose sum is σ = 3108445740. Its totient is φ = 1036007056.

The previous prime is 2072155633. The next prime is 2072155639. The reversal of 2072155634 is 4365512702.

It can be written as a sum of positive squares in 2 ways, for example, as 1836379609 + 235776025 = 42853^2 + 15355^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2072155594 and 2072155603.

It is not an unprimeable number, because it can be changed into a prime (2072155633) 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, 16352 + ... + 66420.

Almost surely, 2^2072155634 is an apocalyptic number.

2072155634 is a deficient number, since it is larger than the sum of its proper divisors (1036290106).

2072155634 is a wasteful number, since it uses less digits than its factorization.

2072155634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70764.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 2072155634 is about 45520.9362162072. The cubic root of 2072155634 is about 1274.8941363340.

The spelling of 2072155634 in words is "two billion, seventy-two million, one hundred fifty-five thousand, six hundred thirty-four".