1642145148 has 72 divisors (see below), whose sum is σ = 4993672320. Its totient is φ = 444489120.

The previous prime is 1642145119. The next prime is 1642145207. The reversal of 1642145148 is 8415412461.

1642145148 is a `hidden beast` number, since 1 + 642 + 1 + 4 + 5 + 1 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166698 + ... + 176273.

It is an arithmetic number, because the mean of its divisors is an integer number (69356560).

Almost surely, 2^1642145148 is an apocalyptic number.

1642145148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1642145148 is an abundant number, since it is smaller than the sum of its proper divisors (3351527172).

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

1642145148 is a wasteful number, since it uses less digits than its factorization.

1642145148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343007 (or 343002 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 1642145148 is about 40523.3901345877. The cubic root of 1642145148 is about 1179.7876540238.

The spelling of 1642145148 in words is "one billion, six hundred forty-two million, one hundred forty-five thousand, one hundred forty-eight".