1292486137 has 2 divisors, whose sum is σ = 1292486138. Its totient is φ = 1292486136.

The previous prime is 1292486101. The next prime is 1292486159. The reversal of 1292486137 is 7316842921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1059893136 + 232593001 = 32556^2 + 15251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1292486137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1292486093 and 1292486102.

It is not a weakly prime, because it can be changed into another prime (1292486177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646243068 + 646243069.

It is an arithmetic number, because the mean of its divisors is an integer number (646243069).

Almost surely, 2^1292486137 is an apocalyptic number.

It is an amenable number.

1292486137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1292486137 is an equidigital number, since it uses as much as digits as its factorization.

1292486137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 1292486137 is about 35951.1632217930. The cubic root of 1292486137 is about 1089.2861069018.

The spelling of 1292486137 in words is "one billion, two hundred ninety-two million, four hundred eighty-six thousand, one hundred thirty-seven".