148649860829 has 2 divisors, whose sum is σ = 148649860830. Its totient is φ = 148649860828.

The previous prime is 148649860823. The next prime is 148649860841. The reversal of 148649860829 is 928068946841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118403433604 + 30246427225 = 344098^2 + 173915^2 .

It is a cyclic number.

It is not a de Polignac number, because 148649860829 - 2¹⁶ = 148649795293 is a prime.

It is a super-2 number, since 2×148649860829² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148649860823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74324930414 + 74324930415.

It is an arithmetic number, because the mean of its divisors is an integer number (74324930415).

Almost surely, 2^148649860829 is an apocalyptic number.

It is an amenable number.

148649860829 is a deficient number, since it is larger than the sum of its proper divisors (1).

148649860829 is an equidigital number, since it uses as much as digits as its factorization.

148649860829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47775744, while the sum is 65.

The spelling of 148649860829 in words is "one hundred forty-eight billion, six hundred forty-nine million, eight hundred sixty thousand, eight hundred twenty-nine".