70136503 has 2 divisors, whose sum is σ = 70136504. Its totient is φ = 70136502.

The previous prime is 70136489. The next prime is 70136513. The reversal of 70136503 is 30563107.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (30563107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70136503 - 2²¹ = 68039351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70136513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35068251 + 35068252.

It is an arithmetic number, because the mean of its divisors is an integer number (35068252).

Almost surely, 2^70136503 is an apocalyptic number.

70136503 is a deficient number, since it is larger than the sum of its proper divisors (1).

70136503 is an equidigital number, since it uses as much as digits as its factorization.

70136503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 70136503 is about 8374.7539068321. The cubic root of 70136503 is about 412.3962454693.

The spelling of 70136503 in words is "seventy million, one hundred thirty-six thousand, five hundred three".