1218070537 has 2 divisors, whose sum is σ = 1218070538. Its totient is φ = 1218070536.

The previous prime is 1218070523. The next prime is 1218070549. The reversal of 1218070537 is 7350708121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1130909641 + 87160896 = 33629^2 + 9336^2 .

It is a cyclic number.

It is not a de Polignac number, because 1218070537 - 2²³ = 1209681929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1218070577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609035268 + 609035269.

It is an arithmetic number, because the mean of its divisors is an integer number (609035269).

Almost surely, 2^1218070537 is an apocalyptic number.

It is an amenable number.

1218070537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1218070537 is an equidigital number, since it uses as much as digits as its factorization.

1218070537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 1218070537 is about 34900.8672814874. The cubic root of 1218070537 is about 1067.9661300377.

Adding to 1218070537 its reverse (7350708121), we get a palindrome (8568778658).

The spelling of 1218070537 in words is "one billion, two hundred eighteen million, seventy thousand, five hundred thirty-seven".