2053746731 has 4 divisors (see below), whose sum is σ = 2053928472. Its totient is φ = 2053564992.

The previous prime is 2053746713. The next prime is 2053746757. The reversal of 2053746731 is 1376473502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2053746731 is a prime.

It is a super-4 number, since 4×2053746731⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2053746701) 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, 72710 + ... + 96923.

It is an arithmetic number, because the mean of its divisors is an integer number (513482118).

Almost surely, 2^2053746731 is an apocalyptic number.

2053746731 is a deficient number, since it is larger than the sum of its proper divisors (181741).

2053746731 is a wasteful number, since it uses less digits than its factorization.

2053746731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181740.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 2053746731 is about 45318.2825248266. The cubic root of 2053746731 is about 1271.1075404800.

The spelling of 2053746731 in words is "two billion, fifty-three million, seven hundred forty-six thousand, seven hundred thirty-one".