148571491531 has 2 divisors, whose sum is σ = 148571491532. Its totient is φ = 148571491530.

The previous prime is 148571491511. The next prime is 148571491559. The reversal of 148571491531 is 135194175841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148571491531 - 2¹⁷ = 148571360459 is a prime.

It is a super-2 number, since 2×148571491531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (148571491501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74285745765 + 74285745766.

It is an arithmetic number, because the mean of its divisors is an integer number (74285745766).

Almost surely, 2^148571491531 is an apocalyptic number.

148571491531 is a deficient number, since it is larger than the sum of its proper divisors (1).

148571491531 is an equidigital number, since it uses as much as digits as its factorization.

148571491531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 49.

The spelling of 148571491531 in words is "one hundred forty-eight billion, five hundred seventy-one million, four hundred ninety-one thousand, five hundred thirty-one".