148851531 has 6 divisors (see below), whose sum is σ = 215007780. Its totient is φ = 99234348.

The previous prime is 148851511. The next prime is 148851539. The reversal of 148851531 is 135158841.

148851531 is a `hidden beast` number, since 1 + 48 + 85 + 1 + 531 = 666.

It is not a de Polignac number, because 148851531 - 2⁶ = 148851467 is a prime.

It is a super-2 number, since 2×148851531² = 44313556562087922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (148851539) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8269521 + ... + 8269538.

It is an arithmetic number, because the mean of its divisors is an integer number (35834630).

Almost surely, 2^148851531 is an apocalyptic number.

148851531 is a deficient number, since it is larger than the sum of its proper divisors (66156249).

148851531 is a wasteful number, since it uses less digits than its factorization.

148851531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16539065 (or 16539062 counting only the distinct ones).

The product of its digits is 19200, while the sum is 36.

The square root of 148851531 is about 12200.4725728145. The cubic root of 148851531 is about 529.9697751839.

The spelling of 148851531 in words is "one hundred forty-eight million, eight hundred fifty-one thousand, five hundred thirty-one".