148491878357 has 2 divisors, whose sum is σ = 148491878358. Its totient is φ = 148491878356.

The previous prime is 148491878281. The next prime is 148491878401. The reversal of 148491878357 is 753878194841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140048841361 + 8443036996 = 374231^2 + 91886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148491878357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 148491878293 and 148491878302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148491874357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74245939178 + 74245939179.

It is an arithmetic number, because the mean of its divisors is an integer number (74245939179).

Almost surely, 2^148491878357 is an apocalyptic number.

It is an amenable number.

148491878357 is a deficient number, since it is larger than the sum of its proper divisors (1).

148491878357 is an equidigital number, since it uses as much as digits as its factorization.

148491878357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54190080, while the sum is 65.

The spelling of 148491878357 in words is "one hundred forty-eight billion, four hundred ninety-one million, eight hundred seventy-eight thousand, three hundred fifty-seven".