881356061 has 4 divisors (see below), whose sum is σ = 881428512. Its totient is φ = 881283612.

The previous prime is 881356037. The next prime is 881356087. The reversal of 881356061 is 160653188.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-881356061 is a prime.

It is a super-2 number, since 2×881356061² = 1553577012522871442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881352061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13025 + ... + 43958.

It is an arithmetic number, because the mean of its divisors is an integer number (220357128).

Almost surely, 2^881356061 is an apocalyptic number.

It is an amenable number.

881356061 is a deficient number, since it is larger than the sum of its proper divisors (72451).

881356061 is a wasteful number, since it uses less digits than its factorization.

881356061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72450.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 881356061 is about 29687.6415533467. The cubic root of 881356061 is about 958.7759504259.

The spelling of 881356061 in words is "eight hundred eighty-one million, three hundred fifty-six thousand, sixty-one".