251448148 has 24 divisors (see below), whose sum is σ = 503603072. Its totient is φ = 107612064.

The previous prime is 251448137. The next prime is 251448149. The reversal of 251448148 is 841844152.

It is a super-2 number, since 2×251448148² = 126452342265259808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251448149) 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 7 ways as a sum of consecutive naturals, for example, 15265 + ... + 27127.

Almost surely, 2^251448148 is an apocalyptic number.

251448148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

251448148 is an abundant number, since it is smaller than the sum of its proper divisors (252154924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

251448148 is a wasteful number, since it uses less digits than its factorization.

251448148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12631 (or 12629 counting only the distinct ones).

The product of its digits is 40960, while the sum is 37.

The square root of 251448148 is about 15857.1166357570. The cubic root of 251448148 is about 631.1745519342.

The spelling of 251448148 in words is "two hundred fifty-one million, four hundred forty-eight thousand, one hundred forty-eight".