1061862261 has 16 divisors (see below), whose sum is σ = 1450046016. Its totient is φ = 690932736.

The previous prime is 1061862199. The next prime is 1061862311. The reversal of 1061862261 is 1622681601.

It is not a de Polignac number, because 1061862261 - 2⁷ = 1061862133 is a prime.

It is a super-2 number, since 2×1061862261² = 2255102922672064242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061862661) 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, 13386 + ... + 47988.

It is an arithmetic number, because the mean of its divisors is an integer number (90627876).

Almost surely, 2^1061862261 is an apocalyptic number.

It is an amenable number.

1061862261 is a deficient number, since it is larger than the sum of its proper divisors (388183755).

1061862261 is a wasteful number, since it uses less digits than its factorization.

1061862261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34852.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1061862261 is about 32586.2280879515. The cubic root of 1061862261 is about 1020.2095753524.

The spelling of 1061862261 in words is "one billion, sixty-one million, eight hundred sixty-two thousand, two hundred sixty-one".