102421241 has 8 divisors (see below), whose sum is σ = 113858304. Its totient is φ = 91492560.

The previous prime is 102421237. The next prime is 102421261. The reversal of 102421241 is 142124201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102421241 - 2² = 102421237 is a prime.

It is a super-2 number, since 2×102421241² = 20980221215960162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102421201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126671 + ... + 127476.

It is an arithmetic number, because the mean of its divisors is an integer number (14232288).

Almost surely, 2^102421241 is an apocalyptic number.

It is an amenable number.

102421241 is a deficient number, since it is larger than the sum of its proper divisors (11437063).

102421241 is a wasteful number, since it uses less digits than its factorization.

102421241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254191.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 102421241 is about 10120.3379884271. The cubic root of 102421241 is about 467.8751843468.

Adding to 102421241 its reverse (142124201), we get a palindrome (244545442).

The spelling of 102421241 in words is "one hundred two million, four hundred twenty-one thousand, two hundred forty-one".