1230737881 has 2 divisors, whose sum is σ = 1230737882. Its totient is φ = 1230737880.

The previous prime is 1230737867. The next prime is 1230737887. The reversal of 1230737881 is 1887370321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 864360000 + 366377881 = 29400^2 + 19141^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230737881 - 2¹¹ = 1230735833 is a prime.

It is a super-2 number, since 2×1230737881² = 3029431463456740322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1230737887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615368940 + 615368941.

It is an arithmetic number, because the mean of its divisors is an integer number (615368941).

Almost surely, 2^1230737881 is an apocalyptic number.

It is an amenable number.

1230737881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230737881 is an equidigital number, since it uses as much as digits as its factorization.

1230737881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 1230737881 is about 35081.8739664802. The cubic root of 1230737881 is about 1071.6554805619.

The spelling of 1230737881 in words is "one billion, two hundred thirty million, seven hundred thirty-seven thousand, eight hundred eighty-one".