1214563901 has 2 divisors, whose sum is σ = 1214563902. Its totient is φ = 1214563900.

The previous prime is 1214563891. The next prime is 1214563907. The reversal of 1214563901 is 1093654121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 990612676 + 223951225 = 31474^2 + 14965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1214563901 is a prime.

It is a super-2 number, since 2×1214563901² = 2950330939224675602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214563907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607281950 + 607281951.

It is an arithmetic number, because the mean of its divisors is an integer number (607281951).

Almost surely, 2^1214563901 is an apocalyptic number.

It is an amenable number.

1214563901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214563901 is an equidigital number, since it uses as much as digits as its factorization.

1214563901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1214563901 is about 34850.5939834603. The cubic root of 1214563901 is about 1066.9403087762.

The spelling of 1214563901 in words is "one billion, two hundred fourteen million, five hundred sixty-three thousand, nine hundred one".