231400148 has 48 divisors (see below), whose sum is σ = 492844800. Its totient is φ = 94846752.

The previous prime is 231400121. The next prime is 231400153. The reversal of 231400148 is 841004132.

231400148 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27890 + ... + 35222.

It is an arithmetic number, because the mean of its divisors is an integer number (10267600).

Almost surely, 2^231400148 is an apocalyptic number.

231400148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231400148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246422400).

231400148 is an abundant number, since it is smaller than the sum of its proper divisors (261444652).

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

231400148 is a wasteful number, since it uses less digits than its factorization.

231400148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7381 (or 7365 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 231400148 is about 15211.8423604769. The cubic root of 231400148 is about 613.9333289235.

The spelling of 231400148 in words is "two hundred thirty-one million, four hundred thousand, one hundred forty-eight".