247061613 has 12 divisors (see below), whose sum is σ = 337652864. Its totient is φ = 160687200.

The previous prime is 247061603. The next prime is 247061669. The reversal of 247061613 is 316160742.

It is not a de Polignac number, because 247061613 - 2¹³ = 247053421 is a prime.

It is a super-2 number, since 2×247061613² = 122078881236323538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247061603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19453 + ... + 29538.

Almost surely, 2^247061613 is an apocalyptic number.

It is an amenable number.

247061613 is a deficient number, since it is larger than the sum of its proper divisors (90591251).

247061613 is an equidigital number, since it uses as much as digits as its factorization.

247061613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49076 (or 49035 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 247061613 is about 15718.1936939332. The cubic root of 247061613 is about 627.4827012792.

The spelling of 247061613 in words is "two hundred forty-seven million, sixty-one thousand, six hundred thirteen".