3142420261 has 4 divisors (see below), whose sum is σ = 3143384224. Its totient is φ = 3141456300.

The previous prime is 3142420243. The next prime is 3142420291. The reversal of 3142420261 is 1620242413.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1620242413 = 419 ⋅3866927.

It is a cyclic number.

It is not a de Polignac number, because 3142420261 - 2¹³ = 3142412069 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 (3142420231) 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, 477075 + ... + 483616.

It is an arithmetic number, because the mean of its divisors is an integer number (785846056).

Almost surely, 2^3142420261 is an apocalyptic number.

It is an amenable number.

3142420261 is a deficient number, since it is larger than the sum of its proper divisors (963963).

3142420261 is an equidigital number, since it uses as much as digits as its factorization.

3142420261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963962.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 3142420261 is about 56057.2944495183. The cubic root of 3142420261 is about 1464.7204848274.

Adding to 3142420261 its reverse (1620242413), we get a palindrome (4762662674).

The spelling of 3142420261 in words is "three billion, one hundred forty-two million, four hundred twenty thousand, two hundred sixty-one".