148909724729 has 2 divisors, whose sum is σ = 148909724730. Its totient is φ = 148909724728.

The previous prime is 148909724693. The next prime is 148909724731. The reversal of 148909724729 is 927427909841.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124786975504 + 24122749225 = 353252^2 + 155315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148909724729 is a prime.

It is a super-2 number, since 2×148909724729² (a number of 23 digits) contains 22 as substring.

Together with 148909724731, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148909724429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74454862364 + 74454862365.

It is an arithmetic number, because the mean of its divisors is an integer number (74454862365).

Almost surely, 2^148909724729 is an apocalyptic number.

It is an amenable number.

148909724729 is a deficient number, since it is larger than the sum of its proper divisors (1).

148909724729 is an equidigital number, since it uses as much as digits as its factorization.

148909724729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18289152, while the sum is 62.

The spelling of 148909724729 in words is "one hundred forty-eight billion, nine hundred nine million, seven hundred twenty-four thousand, seven hundred twenty-nine".