148025637081 has 135 divisors (see below), whose sum is σ = 267148060047. Its totient is φ = 81441974880.

The previous prime is 148025637079. The next prime is 148025637101. The reversal of 148025637081 is 180736520841.

The square root of 148025637081 is 384741.

It is a perfect power (a square), and thus also a powerful number.

148025637081 is a `hidden beast` number, since 1 + 4 + 8 + 0 + 2 + 5 + 637 + 0 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 145035297225 + 2990339856 = 380835^2 + 54684^2 .

It is not a de Polignac number, because 148025637081 - 2¹ = 148025637079 is a prime.

It is a super-2 number, since 2×148025637081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (148025637481) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 751399075 + ... + 751399271.

Almost surely, 2^148025637081 is an apocalyptic number.

148025637081 is the 384741-st square number.

148025637081 is the 192371-st centered octagonal number.

It is an amenable number.

148025637081 is a deficient number, since it is larger than the sum of its proper divisors (119122422966).

148025637081 is an frugal number, since it uses more digits than its factorization.

148025637081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 148025637081 in words is "one hundred forty-eight billion, twenty-five million, six hundred thirty-seven thousand, eighty-one".