354345145247 has 2 divisors, whose sum is σ = 354345145248. Its totient is φ = 354345145246.

The previous prime is 354345145181. The next prime is 354345145261. The reversal of 354345145247 is 742541543453.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 354345145247 - 2¹⁸ = 354344883103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354345115247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177172572623 + 177172572624.

It is an arithmetic number, because the mean of its divisors is an integer number (177172572624).

Almost surely, 2^354345145247 is an apocalyptic number.

354345145247 is a deficient number, since it is larger than the sum of its proper divisors (1).

354345145247 is an equidigital number, since it uses as much as digits as its factorization.

354345145247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032000, while the sum is 47.

The spelling of 354345145247 in words is "three hundred fifty-four billion, three hundred forty-five million, one hundred forty-five thousand, two hundred forty-seven".