148809851 has 4 divisors (see below), whose sum is σ = 150693600. Its totient is φ = 146926104.

The previous prime is 148809847. The next prime is 148809917. The reversal of 148809851 is 158908841.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 148809851 - 2² = 148809847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148809821) 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, 941756 + ... + 941913.

It is an arithmetic number, because the mean of its divisors is an integer number (37673400).

Almost surely, 2^148809851 is an apocalyptic number.

148809851 is a deficient number, since it is larger than the sum of its proper divisors (1883749).

148809851 is an equidigital number, since it uses as much as digits as its factorization.

148809851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883748.

The product of its (nonzero) digits is 92160, while the sum is 44.

The square root of 148809851 is about 12198.7643226681. The cubic root of 148809851 is about 529.9203048557.

The spelling of 148809851 in words is "one hundred forty-eight million, eight hundred nine thousand, eight hundred fifty-one".