102097261 has 4 divisors (see below), whose sum is σ = 116682592. Its totient is φ = 87511932.

The previous prime is 102097249. The next prime is 102097267. The reversal of 102097261 is 162790201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102097261 - 2¹³ = 102089069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102097267) 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, 7292655 + ... + 7292668.

It is an arithmetic number, because the mean of its divisors is an integer number (29170648).

Almost surely, 2^102097261 is an apocalyptic number.

It is an amenable number.

102097261 is a deficient number, since it is larger than the sum of its proper divisors (14585331).

102097261 is an equidigital number, since it uses as much as digits as its factorization.

102097261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14585330.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 102097261 is about 10104.3189280624. The cubic root of 102097261 is about 467.3813339467.

The spelling of 102097261 in words is "one hundred two million, ninety-seven thousand, two hundred sixty-one".