148812031 has 4 divisors (see below), whose sum is σ = 150256912. Its totient is φ = 147367152.

The previous prime is 148812029. The next prime is 148812049. The reversal of 148812031 is 130218841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130218841 = 59 ⋅2207099.

It is a cyclic number.

It is not a de Polignac number, because 148812031 - 2¹ = 148812029 is a prime.

It is a super-2 number, since 2×148812031² = 44290041140689922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148812061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722286 + ... + 722491.

It is an arithmetic number, because the mean of its divisors is an integer number (37564228).

Almost surely, 2^148812031 is an apocalyptic number.

148812031 is a deficient number, since it is larger than the sum of its proper divisors (1444881).

148812031 is a wasteful number, since it uses less digits than its factorization.

148812031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444880.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 148812031 is about 12198.8536756533. The cubic root of 148812031 is about 529.9228925442.

The spelling of 148812031 in words is "one hundred forty-eight million, eight hundred twelve thousand, thirty-one".