148732251 has 4 divisors (see below), whose sum is σ = 198309672. Its totient is φ = 99154832.

The previous prime is 148732231. The next prime is 148732277. The reversal of 148732251 is 152237841.

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 148732251 - 2⁶ = 148732187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148732211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24788706 + ... + 24788711.

It is an arithmetic number, because the mean of its divisors is an integer number (49577418).

Almost surely, 2^148732251 is an apocalyptic number.

148732251 is a deficient number, since it is larger than the sum of its proper divisors (49577421).

148732251 is an equidigital number, since it uses as much as digits as its factorization.

148732251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49577420.

The product of its digits is 13440, while the sum is 33.

The square root of 148732251 is about 12195.5832578848. The cubic root of 148732251 is about 529.8281761752.

The spelling of 148732251 in words is "one hundred forty-eight million, seven hundred thirty-two thousand, two hundred fifty-one".