2051374731 has 8 divisors (see below), whose sum is σ = 3125904384. Its totient is φ = 1172214120.

The previous prime is 2051374709. The next prime is 2051374733. The reversal of 2051374731 is 1374731502.

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

It is not a de Polignac number, because 2051374731 - 2⁶ = 2051374667 is a prime.

It is a super-2 number, since 2×2051374731² = 8416276573970644722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2051374692 and 2051374701.

It is not an unprimeable number, because it can be changed into a prime (2051374733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48842235 + ... + 48842276.

It is an arithmetic number, because the mean of its divisors is an integer number (390738048).

Almost surely, 2^2051374731 is an apocalyptic number.

2051374731 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2051374731 is a deficient number, since it is larger than the sum of its proper divisors (1074529653).

2051374731 is an equidigital number, since it uses as much as digits as its factorization.

2051374731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97684521.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 2051374731 is about 45292.1045106098. The cubic root of 2051374731 is about 1270.6179915418.

The spelling of 2051374731 in words is "two billion, fifty-one million, three hundred seventy-four thousand, seven hundred thirty-one".