145679731551349 has 2 divisors, whose sum is σ = 145679731551350. Its totient is φ = 145679731551348.

The previous prime is 145679731551307. The next prime is 145679731551391. The reversal of 145679731551349 is 943155137976541.

It is a balanced prime because it is at equal distance from previous prime (145679731551307) and next prime (145679731551391).

It can be written as a sum of positive squares in only one way, i.e., 142410976030449 + 3268755520900 = 11933607^2 + 1807970^2 .

It is a cyclic number.

It is not a de Polignac number, because 145679731551349 - 2³⁵ = 145645371812981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145679731555349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72839865775674 + 72839865775675.

It is an arithmetic number, because the mean of its divisors is an integer number (72839865775675).

Almost surely, 2^{145679731551349} is an apocalyptic number.

It is an amenable number.

145679731551349 is a deficient number, since it is larger than the sum of its proper divisors (1).

145679731551349 is an equidigital number, since it uses as much as digits as its factorization.

145679731551349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652000, while the sum is 70.

The spelling of 145679731551349 in words is "one hundred forty-five trillion, six hundred seventy-nine billion, seven hundred thirty-one million, five hundred fifty-one thousand, three hundred forty-nine".