2101430537 has 4 divisors (see below), whose sum is σ = 2225044116. Its totient is φ = 1977816960.

The previous prime is 2101430501. The next prime is 2101430557. The reversal of 2101430537 is 7350341012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1291971136 + 809459401 = 35944^2 + 28451^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101430537 - 2⁶ = 2101430473 is a prime.

It is a super-2 number, since 2×2101430537² = 8832020603672216738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2101430557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61806764 + ... + 61806797.

It is an arithmetic number, because the mean of its divisors is an integer number (556261029).

Almost surely, 2^2101430537 is an apocalyptic number.

It is an amenable number.

2101430537 is a deficient number, since it is larger than the sum of its proper divisors (123613579).

2101430537 is a wasteful number, since it uses less digits than its factorization.

2101430537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123613578.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 2101430537 is about 45841.3627306170. The cubic root of 2101430537 is about 1280.8698792831.

Adding to 2101430537 its reverse (7350341012), we get a palindrome (9451771549).

The spelling of 2101430537 in words is "two billion, one hundred one million, four hundred thirty thousand, five hundred thirty-seven".