148780829 has 2 divisors, whose sum is σ = 148780830. Its totient is φ = 148780828.

The previous prime is 148780781. The next prime is 148780843. The reversal of 148780829 is 928087841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117722500 + 31058329 = 10850^2 + 5573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148780829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148786829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74390414 + 74390415.

It is an arithmetic number, because the mean of its divisors is an integer number (74390415).

Almost surely, 2^148780829 is an apocalyptic number.

It is an amenable number.

148780829 is a deficient number, since it is larger than the sum of its proper divisors (1).

148780829 is an equidigital number, since it uses as much as digits as its factorization.

148780829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 148780829 is about 12197.5747179511. The cubic root of 148780829 is about 529.8858529542.

The spelling of 148780829 in words is "one hundred forty-eight million, seven hundred eighty thousand, eight hundred twenty-nine".