148012531 has 4 divisors (see below), whose sum is σ = 149178112. Its totient is φ = 146846952.

The previous prime is 148012463. The next prime is 148012561. The reversal of 148012531 is 135210841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135210841 = 773 ⋅174917.

It is a cyclic number.

It is not a de Polignac number, because 148012531 - 2⁹ = 148012019 is a prime.

It is a super-2 number, since 2×148012531² = 43815418666051922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148012496 and 148012505.

It is not an unprimeable number, because it can be changed into a prime (148012561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582600 + ... + 582853.

It is an arithmetic number, because the mean of its divisors is an integer number (37294528).

Almost surely, 2^148012531 is an apocalyptic number.

148012531 is a deficient number, since it is larger than the sum of its proper divisors (1165581).

148012531 is a wasteful number, since it uses less digits than its factorization.

148012531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165580.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 148012531 is about 12166.0400706228. The cubic root of 148012531 is about 528.9721755942.

The spelling of 148012531 in words is "one hundred forty-eight million, twelve thousand, five hundred thirty-one".