1642150141 has 4 divisors (see below), whose sum is σ = 1648964284. Its totient is φ = 1635336000.

The previous prime is 1642150129. The next prime is 1642150219. The reversal of 1642150141 is 1410512461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1410512461 = 4153 ⋅339637.

It can be written as a sum of positive squares in 2 ways, for example, as 949934041 + 692216100 = 30821^2 + 26310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1642150141 - 2²¹ = 1640052989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642150121) 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, 3406710 + ... + 3407191.

It is an arithmetic number, because the mean of its divisors is an integer number (412241071).

Almost surely, 2^1642150141 is an apocalyptic number.

It is an amenable number.

1642150141 is a deficient number, since it is larger than the sum of its proper divisors (6814143).

1642150141 is an equidigital number, since it uses as much as digits as its factorization.

1642150141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814142.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 1642150141 is about 40523.4517409364. The cubic root of 1642150141 is about 1179.7888497512.

The spelling of 1642150141 in words is "one billion, six hundred forty-two million, one hundred fifty thousand, one hundred forty-one".