1051202661 has 8 divisors (see below), whose sum is σ = 1401760704. Its totient is φ = 700723200.

The previous prime is 1051202629. The next prime is 1051202687. The reversal of 1051202661 is 1662021501.

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

It is not a de Polignac number, because 1051202661 - 2⁵ = 1051202629 is a prime.

It is a super-2 number, since 2×1051202661² = 2210054068986961842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051202161) 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, 28261 + ... + 53861.

It is an arithmetic number, because the mean of its divisors is an integer number (175220088).

Almost surely, 2^1051202661 is an apocalyptic number.

It is an amenable number.

1051202661 is a deficient number, since it is larger than the sum of its proper divisors (350558043).

1051202661 is a wasteful number, since it uses less digits than its factorization.

1051202661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39291.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1051202661 is about 32422.2556433077. The cubic root of 1051202661 is about 1016.7842659750.

The spelling of 1051202661 in words is "one billion, fifty-one million, two hundred two thousand, six hundred sixty-one".