2261402143 has 16 divisors (see below), whose sum is σ = 3036289536. Its totient is φ = 1626582240.

The previous prime is 2261402141. The next prime is 2261402161. The reversal of 2261402143 is 3412041622.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2261402143 - 2¹ = 2261402141 is a prime.

It is a super-2 number, since 2×2261402143² = 10227879304729984898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261402141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1128571 + ... + 1130572.

It is an arithmetic number, because the mean of its divisors is an integer number (189768096).

Almost surely, 2^2261402143 is an apocalyptic number.

2261402143 is a deficient number, since it is larger than the sum of its proper divisors (774887393).

2261402143 is a wasteful number, since it uses less digits than its factorization.

2261402143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259174.

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

The square root of 2261402143 is about 47554.2021592204. The cubic root of 2261402143 is about 1312.5804550892.

Adding to 2261402143 its reverse (3412041622), we get a palindrome (5673443765).

It can be divided in two parts, 2261 and 402143, that added together give a palindrome (404404).

The spelling of 2261402143 in words is "two billion, two hundred sixty-one million, four hundred two thousand, one hundred forty-three".