110051621 has 2 divisors, whose sum is σ = 110051622. Its totient is φ = 110051620.

The previous prime is 110051611. The next prime is 110051647. The reversal of 110051621 is 126150011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108451396 + 1600225 = 10414^2 + 1265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110051621 is a prime.

It is a super-2 number, since 2×110051621² = 24222718569455282, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110051621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110051611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55025810 + 55025811.

It is an arithmetic number, because the mean of its divisors is an integer number (55025811).

Almost surely, 2^110051621 is an apocalyptic number.

It is an amenable number.

110051621 is a deficient number, since it is larger than the sum of its proper divisors (1).

110051621 is an equidigital number, since it uses as much as digits as its factorization.

110051621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 110051621 is about 10490.5491276672. The cubic root of 110051621 is about 479.2169248590.

The spelling of 110051621 in words is "one hundred ten million, fifty-one thousand, six hundred twenty-one".