102261541 has 4 divisors (see below), whose sum is σ = 102282400. Its totient is φ = 102240684.

The previous prime is 102261521. The next prime is 102261557. The reversal of 102261541 is 145162201.

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 102261541 - 2⁷ = 102261413 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 (102261521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390 + ... + 14368.

It is an arithmetic number, because the mean of its divisors is an integer number (25570600).

Almost surely, 2^102261541 is an apocalyptic number.

It is an amenable number.

102261541 is a deficient number, since it is larger than the sum of its proper divisors (20859).

102261541 is an equidigital number, since it uses as much as digits as its factorization.

102261541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20858.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 102261541 is about 10112.4448576989. Note that the first 3 decimals coincide. The cubic root of 102261541 is about 467.6318802061.

The spelling of 102261541 in words is "one hundred two million, two hundred sixty-one thousand, five hundred forty-one".