2051131741 has 4 divisors (see below), whose sum is σ = 2106567772. Its totient is φ = 1995695712.

The previous prime is 2051131739. The next prime is 2051131751. The reversal of 2051131741 is 1471311502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1471311502 = 2 ⋅735655751.

It can be written as a sum of positive squares in 2 ways, for example, as 828230841 + 1222900900 = 28779^2 + 34970^2 .

It is a cyclic number.

It is not a de Polignac number, because 2051131741 - 2¹ = 2051131739 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 (2051131721) 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, 27717960 + ... + 27718033.

It is an arithmetic number, because the mean of its divisors is an integer number (526641943).

Almost surely, 2^2051131741 is an apocalyptic number.

It is an amenable number.

2051131741 is a deficient number, since it is larger than the sum of its proper divisors (55436031).

2051131741 is an equidigital number, since it uses as much as digits as its factorization.

2051131741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55436030.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 2051131741 is about 45289.4219548009. The cubic root of 2051131741 is about 1270.5678203643.

The spelling of 2051131741 in words is "two billion, fifty-one million, one hundred thirty-one thousand, seven hundred forty-one".