148377813 has 4 divisors (see below), whose sum is σ = 197837088. Its totient is φ = 98918540.

The previous prime is 148377797. The next prime is 148377841. The reversal of 148377813 is 318773841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 318773841 = 3 ⋅106257947.

It is a cyclic number.

It is not a de Polignac number, because 148377813 - 2⁴ = 148377797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148377883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24729633 + ... + 24729638.

It is an arithmetic number, because the mean of its divisors is an integer number (49459272).

Almost surely, 2^148377813 is an apocalyptic number.

It is an amenable number.

148377813 is a deficient number, since it is larger than the sum of its proper divisors (49459275).

148377813 is an equidigital number, since it uses as much as digits as its factorization.

148377813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49459274.

The product of its digits is 112896, while the sum is 42.

The square root of 148377813 is about 12181.0431819282. The cubic root of 148377813 is about 529.4069704889.

The spelling of 148377813 in words is "one hundred forty-eight million, three hundred seventy-seven thousand, eight hundred thirteen".