148984774789 has 2 divisors, whose sum is σ = 148984774790. Its totient is φ = 148984774788.

The previous prime is 148984774759. The next prime is 148984774793. The reversal of 148984774789 is 987477489841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131647785889 + 17336988900 = 362833^2 + 131670^2 .

It is a cyclic number.

It is not a de Polignac number, because 148984774789 - 2³⁷ = 11545821317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148984774759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74492387394 + 74492387395.

It is an arithmetic number, because the mean of its divisors is an integer number (74492387395).

Almost surely, 2^148984774789 is an apocalyptic number.

It is an amenable number.

148984774789 is a deficient number, since it is larger than the sum of its proper divisors (1).

148984774789 is an equidigital number, since it uses as much as digits as its factorization.

148984774789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 910393344, while the sum is 76.

The spelling of 148984774789 in words is "one hundred forty-eight billion, nine hundred eighty-four million, seven hundred seventy-four thousand, seven hundred eighty-nine".