248154642 has 54 divisors (see below), whose sum is σ = 556393383. Its totient is φ = 79933464.

The previous prime is 248154637. The next prime is 248154679. The reversal of 248154642 is 246451842.

248154642 is a `hidden beast` number, since 2 + 4 + 8 + 1 + 5 + 4 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 124077321 + 124077321 = 11139^2 + 11139^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=11139.

It is a super-2 number, since 2×248154642² = 123161452692296328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 248154597 and 248154606.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3141159 + ... + 3141237.

Almost surely, 2^248154642 is an apocalyptic number.

248154642 is an abundant number, since it is smaller than the sum of its proper divisors (308238741).

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

248154642 is an equidigital number, since it uses as much as digits as its factorization.

248154642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 131 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 248154642 is about 15752.9248712739. The cubic root of 248154642 is about 628.4066918894.

The spelling of 248154642 in words is "two hundred forty-eight million, one hundred fifty-four thousand, six hundred forty-two".