2123528907 has 8 divisors (see below), whose sum is σ = 2852039376. Its totient is φ = 1405352192.

The previous prime is 2123528893. The next prime is 2123528951. The reversal of 2123528907 is 7098253212.

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 2123528907 - 2¹⁵ = 2123496139 is a prime.

It is a super-2 number, since 2×2123528907² = 9018750037729229298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2123528507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2582958 + ... + 2583779.

It is an arithmetic number, because the mean of its divisors is an integer number (356504922).

Almost surely, 2^2123528907 is an apocalyptic number.

2123528907 is a deficient number, since it is larger than the sum of its proper divisors (728510469).

2123528907 is a wasteful number, since it uses less digits than its factorization.

2123528907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5166877.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2123528907 is about 46081.7632800656. The cubic root of 2123528907 is about 1285.3440527758.

The spelling of 2123528907 in words is "two billion, one hundred twenty-three million, five hundred twenty-eight thousand, nine hundred seven".