2131045 has 8 divisors (see below), whose sum is σ = 2922624. Its totient is φ = 1461264.

The previous prime is 2131043. The next prime is 2131049. The reversal of 2131045 is 5401312.

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

It is not a de Polignac number, because 2131045 - 2¹ = 2131043 is a prime.

It is a Duffinian number.

2131045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30409 + ... + 30478.

It is an arithmetic number, because the mean of its divisors is an integer number (365328).

2^2131045 is an apocalyptic number.

It is an amenable number.

2131045 is a deficient number, since it is larger than the sum of its proper divisors (791579).

2131045 is an equidigital number, since it uses as much as digits as its factorization.

2131045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60899.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2131045 is about 1459.8099191333. The cubic root of 2131045 is about 128.6858731146.

Adding to 2131045 its reverse (5401312), we get a palindrome (7532357).

The spelling of 2131045 in words is "two million, one hundred thirty-one thousand, forty-five".