2291529 has 4 divisors (see below), whose sum is σ = 3055376. Its totient is φ = 1527684.

The previous prime is 2291491. The next prime is 2291539. The reversal of 2291529 is 9251922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2291529 - 2⁸ = 2291273 is a prime.

It is a super-2 number, since 2×2291529² = 10502210315682, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2291496 and 2291505.

It is not an unprimeable number, because it can be changed into a prime (2291539) 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, 381919 + ... + 381924.

It is an arithmetic number, because the mean of its divisors is an integer number (763844).

2^2291529 is an apocalyptic number.

It is an amenable number.

2291529 is a deficient number, since it is larger than the sum of its proper divisors (763847).

2291529 is an equidigital number, since it uses as much as digits as its factorization.

2291529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763846.

The product of its digits is 3240, while the sum is 30.

The square root of 2291529 is about 1513.7797065624. The cubic root of 2291529 is about 131.8383581554.

The spelling of 2291529 in words is "two million, two hundred ninety-one thousand, five hundred twenty-nine".