148971073709 has 2 divisors, whose sum is σ = 148971073710. Its totient is φ = 148971073708.

The previous prime is 148971073607. The next prime is 148971073753. The reversal of 148971073709 is 907370179841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148432972900 + 538100809 = 385270^2 + 23197^2 .

It is a cyclic number.

It is not a de Polignac number, because 148971073709 - 2²⁰ = 148970025133 is a prime.

It is a super-2 number, since 2×148971073709² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148971073759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74485536854 + 74485536855.

It is an arithmetic number, because the mean of its divisors is an integer number (74485536855).

Almost surely, 2^148971073709 is an apocalyptic number.

It is an amenable number.

148971073709 is a deficient number, since it is larger than the sum of its proper divisors (1).

148971073709 is an equidigital number, since it uses as much as digits as its factorization.

148971073709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 56.

The spelling of 148971073709 in words is "one hundred forty-eight billion, nine hundred seventy-one million, seventy-three thousand, seven hundred nine".