148764431 has 4 divisors (see below), whose sum is σ = 149763000. Its totient is φ = 147765864.

The previous prime is 148764419. The next prime is 148764439. The reversal of 148764431 is 134467841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134467841 = 17 ⋅7909873.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148764431 is a prime.

It is a super-2 number, since 2×148764431² = 44261711861507522, 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 (148764439) 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, 499061 + ... + 499358.

It is an arithmetic number, because the mean of its divisors is an integer number (37440750).

Almost surely, 2^148764431 is an apocalyptic number.

148764431 is a deficient number, since it is larger than the sum of its proper divisors (998569).

148764431 is an equidigital number, since it uses as much as digits as its factorization.

148764431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998568.

The product of its digits is 64512, while the sum is 38.

The square root of 148764431 is about 12196.9025166228. The cubic root of 148764431 is about 529.8663849723.

The spelling of 148764431 in words is "one hundred forty-eight million, seven hundred sixty-four thousand, four hundred thirty-one".