2150731 has 8 divisors (see below), whose sum is σ = 2401344. Its totient is φ = 1909320.

The previous prime is 2150719. The next prime is 2150741. The reversal of 2150731 is 1370512.

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

It is a cyclic number.

It is not a de Polignac number, because 2150731 - 2¹⁷ = 2019659 is a prime.

It is a super-2 number, since 2×2150731² = 9251287668722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2150699 and 2150708.

It is not an unprimeable number, because it can be changed into a prime (2150741) 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, 1801 + ... + 2746.

It is an arithmetic number, because the mean of its divisors is an integer number (300168).

2^2150731 is an apocalyptic number.

2150731 is a deficient number, since it is larger than the sum of its proper divisors (250613).

2150731 is a wasteful number, since it uses less digits than its factorization.

2150731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 2150731 is about 1466.5370776083. The cubic root of 2150731 is about 129.0809139226.

The spelling of 2150731 in words is "two million, one hundred fifty thousand, seven hundred thirty-one".