148531157393 has 2 divisors, whose sum is σ = 148531157394. Its totient is φ = 148531157392.

The previous prime is 148531157387. The next prime is 148531157461. The reversal of 148531157393 is 393751135841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146277946369 + 2253211024 = 382463^2 + 47468^2 .

It is a cyclic number.

It is not a de Polignac number, because 148531157393 - 2¹⁰ = 148531156369 is a prime.

It is not a weakly prime, because it can be changed into another prime (148531157353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74265578696 + 74265578697.

It is an arithmetic number, because the mean of its divisors is an integer number (74265578697).

Almost surely, 2^148531157393 is an apocalyptic number.

It is an amenable number.

148531157393 is a deficient number, since it is larger than the sum of its proper divisors (1).

148531157393 is an equidigital number, since it uses as much as digits as its factorization.

148531157393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 50.

The spelling of 148531157393 in words is "one hundred forty-eight billion, five hundred thirty-one million, one hundred fifty-seven thousand, three hundred ninety-three".