148564837 has 4 divisors (see below), whose sum is σ = 148599360. Its totient is φ = 148530316.

The previous prime is 148564817. The next prime is 148564847. The reversal of 148564837 is 738465841.

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: 738465841 = 89 ⋅8297369.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148564837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148564807) 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, 9703 + ... + 19780.

It is an arithmetic number, because the mean of its divisors is an integer number (37149840).

Almost surely, 2^148564837 is an apocalyptic number.

It is an amenable number.

148564837 is a deficient number, since it is larger than the sum of its proper divisors (34523).

148564837 is an equidigital number, since it uses as much as digits as its factorization.

148564837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34522.

The product of its digits is 645120, while the sum is 46.

The square root of 148564837 is about 12188.7176109712. The cubic root of 148564837 is about 529.6293088477.

The spelling of 148564837 in words is "one hundred forty-eight million, five hundred sixty-four thousand, eight hundred thirty-seven".