345472537 has 2 divisors, whose sum is σ = 345472538. Its totient is φ = 345472536.

The previous prime is 345472531. The next prime is 345472541. The reversal of 345472537 is 735274543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247779081 + 97693456 = 15741^2 + 9884^2 .

It is a cyclic number.

It is not a de Polignac number, because 345472537 - 2³ = 345472529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345472537.

It is not a weakly prime, because it can be changed into another prime (345472531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172736268 + 172736269.

It is an arithmetic number, because the mean of its divisors is an integer number (172736269).

Almost surely, 2^345472537 is an apocalyptic number.

It is an amenable number.

345472537 is a deficient number, since it is larger than the sum of its proper divisors (1).

345472537 is an equidigital number, since it uses as much as digits as its factorization.

345472537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 40.

The square root of 345472537 is about 18586.8915367794. The cubic root of 345472537 is about 701.6779724715.

The spelling of 345472537 in words is "three hundred forty-five million, four hundred seventy-two thousand, five hundred thirty-seven".