4142057261 has 4 divisors (see below), whose sum is σ = 4143076800. Its totient is φ = 4141037724.

The previous prime is 4142057251. The next prime is 4142057263. The reversal of 4142057261 is 1627502414.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4142057261 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 (4142057263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503651 + ... + 511808.

It is an arithmetic number, because the mean of its divisors is an integer number (1035769200).

Almost surely, 2^4142057261 is an apocalyptic number.

It is an amenable number.

4142057261 is a deficient number, since it is larger than the sum of its proper divisors (1019539).

4142057261 is a wasteful number, since it uses less digits than its factorization.

4142057261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019538.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 4142057261 is about 64358.8164978195. The cubic root of 4142057261 is about 1605.9747007662.

Adding to 4142057261 its reverse (1627502414), we get a palindrome (5769559675).

The spelling of 4142057261 in words is "four billion, one hundred forty-two million, fifty-seven thousand, two hundred sixty-one".