345131503 has 2 divisors, whose sum is σ = 345131504. Its totient is φ = 345131502.

The previous prime is 345131453. The next prime is 345131519. The reversal of 345131503 is 305131543.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345131503 is a prime.

It is a super-3 number, since 3×345131503³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345131203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172565751 + 172565752.

It is an arithmetic number, because the mean of its divisors is an integer number (172565752).

Almost surely, 2^345131503 is an apocalyptic number.

345131503 is a deficient number, since it is larger than the sum of its proper divisors (1).

345131503 is an equidigital number, since it uses as much as digits as its factorization.

345131503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 345131503 is about 18577.7152255061. The cubic root of 345131503 is about 701.4470087877.

The spelling of 345131503 in words is "three hundred forty-five million, one hundred thirty-one thousand, five hundred three".