345527537 has 4 divisors (see below), whose sum is σ = 347524980. Its totient is φ = 343530096.

The previous prime is 345527527. The next prime is 345527549. The reversal of 345527537 is 735725543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 271722256 + 73805281 = 16484^2 + 8591^2 .

It is a cyclic number.

It is not a de Polignac number, because 345527537 - 2²⁰ = 344478961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345527494 and 345527503.

It is not an unprimeable number, because it can be changed into a prime (345527527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 998462 + ... + 998807.

It is an arithmetic number, because the mean of its divisors is an integer number (86881245).

Almost surely, 2^345527537 is an apocalyptic number.

It is an amenable number.

345527537 is a deficient number, since it is larger than the sum of its proper divisors (1997443).

345527537 is a wasteful number, since it uses less digits than its factorization.

345527537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997442.

The product of its digits is 441000, while the sum is 41.

The square root of 345527537 is about 18588.3710152342. The cubic root of 345527537 is about 701.7152067295.

The spelling of 345527537 in words is "three hundred forty-five million, five hundred twenty-seven thousand, five hundred thirty-seven".