345101557 has 2 divisors, whose sum is σ = 345101558. Its totient is φ = 345101556.

The previous prime is 345101539. The next prime is 345101567. The reversal of 345101557 is 755101543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335109636 + 9991921 = 18306^2 + 3161^2 .

It is a cyclic number.

It is not a de Polignac number, because 345101557 - 2¹⁹ = 344577269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345101507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172550778 + 172550779.

It is an arithmetic number, because the mean of its divisors is an integer number (172550779).

Almost surely, 2^345101557 is an apocalyptic number.

It is an amenable number.

345101557 is a deficient number, since it is larger than the sum of its proper divisors (1).

345101557 is an equidigital number, since it uses as much as digits as its factorization.

345101557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 345101557 is about 18576.9092423901. The cubic root of 345101557 is about 701.4267207337.

The spelling of 345101557 in words is "three hundred forty-five million, one hundred one thousand, five hundred fifty-seven".