145774629197 has 2 divisors, whose sum is σ = 145774629198. Its totient is φ = 145774629196.

The previous prime is 145774629181. The next prime is 145774629229. The reversal of 145774629197 is 791926477541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88122297316 + 57652331881 = 296854^2 + 240109^2 .

It is a cyclic number.

It is not a de Polignac number, because 145774629197 - 2⁴ = 145774629181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145774629127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72887314598 + 72887314599.

It is an arithmetic number, because the mean of its divisors is an integer number (72887314599).

Almost surely, 2^145774629197 is an apocalyptic number.

It is an amenable number.

145774629197 is a deficient number, since it is larger than the sum of its proper divisors (1).

145774629197 is an equidigital number, since it uses as much as digits as its factorization.

145774629197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26671680, while the sum is 62.

The spelling of 145774629197 in words is "one hundred forty-five billion, seven hundred seventy-four million, six hundred twenty-nine thousand, one hundred ninety-seven".