1212050137 has 2 divisors, whose sum is σ = 1212050138. Its totient is φ = 1212050136.

The previous prime is 1212050129. The next prime is 1212050179. The reversal of 1212050137 is 7310502121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 744798681 + 467251456 = 27291^2 + 21616^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212050137 - 2³ = 1212050129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212050117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606025068 + 606025069.

It is an arithmetic number, because the mean of its divisors is an integer number (606025069).

Almost surely, 2^1212050137 is an apocalyptic number.

It is an amenable number.

1212050137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212050137 is an equidigital number, since it uses as much as digits as its factorization.

1212050137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1212050137 is about 34814.5104374598. The cubic root of 1212050137 is about 1066.2037237930.

Adding to 1212050137 its reverse (7310502121), we get a palindrome (8522552258).

The spelling of 1212050137 in words is "one billion, two hundred twelve million, fifty thousand, one hundred thirty-seven".