102367261 has 4 divisors (see below), whose sum is σ = 102437500. Its totient is φ = 102297024.

The previous prime is 102367247. The next prime is 102367277. The reversal of 102367261 is 162763201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162763201 = 439 ⋅370759.

It can be written as a sum of positive squares in 2 ways, for example, as 14364100 + 88003161 = 3790^2 + 9381^2 .

It is a cyclic number.

It is not a de Polignac number, because 102367261 - 2⁹ = 102366749 is a prime.

It is a super-2 number, since 2×102367261² = 20958112249284242, 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 (102367561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32886 + ... + 35863.

It is an arithmetic number, because the mean of its divisors is an integer number (25609375).

Almost surely, 2^102367261 is an apocalyptic number.

It is an amenable number.

102367261 is a deficient number, since it is larger than the sum of its proper divisors (70239).

102367261 is an equidigital number, since it uses as much as digits as its factorization.

102367261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70238.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 102367261 is about 10117.6707299655. The cubic root of 102367261 is about 467.7929737283.

The spelling of 102367261 in words is "one hundred two million, three hundred sixty-seven thousand, two hundred sixty-one".