136147447 has 2 divisors, whose sum is σ = 136147448. Its totient is φ = 136147446.

The previous prime is 136147433. The next prime is 136147477. The reversal of 136147447 is 744741631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136147447 is a prime.

It is a super-2 number, since 2×136147447² = 37072254649235618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136147477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68073723 + 68073724.

It is an arithmetic number, because the mean of its divisors is an integer number (68073724).

Almost surely, 2^136147447 is an apocalyptic number.

136147447 is a deficient number, since it is larger than the sum of its proper divisors (1).

136147447 is an equidigital number, since it uses as much as digits as its factorization.

136147447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 37.

The square root of 136147447 is about 11668.2238151314. The cubic root of 136147447 is about 514.4420979485.

The spelling of 136147447 in words is "one hundred thirty-six million, one hundred forty-seven thousand, four hundred forty-seven".