247095361 has 16 divisors (see below), whose sum is σ = 268322560. Its totient is φ = 226748160.

The previous prime is 247095349. The next prime is 247095367. The reversal of 247095361 is 163590742.

It is a 3-Lehmer number, since φ(247095361) divides (247095361-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 247095361 - 2⁹ = 247094849 is a prime.

It is a super-2 number, since 2×247095361² = 122112234855440642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a deceptive number, since it divides R_247095360.

It is a self number, because there is not a number n which added to its sum of digits gives 247095361.

It is not an unprimeable number, because it can be changed into a prime (247095367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189865 + ... + 191161.

It is an arithmetic number, because the mean of its divisors is an integer number (16770160).

It is a Poulet number, since it divides 2^247095360-1.

Almost surely, 2^247095361 is an apocalyptic number.

It is an amenable number.

247095361 is a deficient number, since it is larger than the sum of its proper divisors (21227199).

247095361 is a wasteful number, since it uses less digits than its factorization.

247095361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 247095361 is about 15719.2671902987. The cubic root of 247095361 is about 627.5112708356.

It can be divided in two parts, 247095 and 361, that added together give a triangular number (247456 = T₇₀₃).

The spelling of 247095361 in words is "two hundred forty-seven million, ninety-five thousand, three hundred sixty-one".