2261161528 has 32 divisors (see below), whose sum is σ = 4270786560. Its totient is φ = 1122316000.

The previous prime is 2261161457. The next prime is 2261161531. The reversal of 2261161528 is 8251611622.

It is a happy number.

It is a super-2 number, since 2×2261161528² = 10225702911414589568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2261161493 and 2261161502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693903 + ... + 697153.

It is an arithmetic number, because the mean of its divisors is an integer number (133462080).

Almost surely, 2^2261161528 is an apocalyptic number.

It is an amenable number.

2261161528 is a deficient number, since it is larger than the sum of its proper divisors (2009625032).

2261161528 is a wasteful number, since it uses less digits than its factorization.

2261161528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867 (or 3863 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 2261161528 is about 47551.6721893142. The cubic root of 2261161528 is about 1312.5339002340.

The spelling of 2261161528 in words is "two billion, two hundred sixty-one million, one hundred sixty-one thousand, five hundred twenty-eight".