2037645121 has 4 divisors (see below), whose sum is σ = 2060540100. Its totient is φ = 2014750144.

The previous prime is 2037645107. The next prime is 2037645149. The reversal of 2037645121 is 1215467302.

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 729810225 + 1307834896 = 27015^2 + 36164^2 .

It is a cyclic number.

It is not a de Polignac number, because 2037645121 - 2⁵ = 2037645089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2037645151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11447356 + ... + 11447533.

It is an arithmetic number, because the mean of its divisors is an integer number (515135025).

Almost surely, 2^2037645121 is an apocalyptic number.

It is an amenable number.

2037645121 is a deficient number, since it is larger than the sum of its proper divisors (22894979).

2037645121 is an equidigital number, since it uses as much as digits as its factorization.

2037645121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22894978.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2037645121 is about 45140.2826863102. The cubic root of 2037645121 is about 1267.7769448539.

The spelling of 2037645121 in words is "two billion, thirty-seven million, six hundred forty-five thousand, one hundred twenty-one".