1461142263 has 8 divisors (see below), whose sum is σ = 2226502528. Its totient is φ = 834938424.

The previous prime is 1461142261. The next prime is 1461142273. The reversal of 1461142263 is 3622411641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1461142263 - 2¹ = 1461142261 is a prime.

It is a super-2 number, since 2×1461142263² = 4269873425449522338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1461142263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461142261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34789081 + ... + 34789122.

It is an arithmetic number, because the mean of its divisors is an integer number (278312816).

Almost surely, 2^1461142263 is an apocalyptic number.

1461142263 is a deficient number, since it is larger than the sum of its proper divisors (765360265).

1461142263 is an equidigital number, since it uses as much as digits as its factorization.

1461142263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69578213.

The product of its digits is 6912, while the sum is 30.

The square root of 1461142263 is about 38224.8906211646. The cubic root of 1461142263 is about 1134.7429701250.

The spelling of 1461142263 in words is "one billion, four hundred sixty-one million, one hundred forty-two thousand, two hundred sixty-three".