102449461 has 2 divisors, whose sum is σ = 102449462. Its totient is φ = 102449460.

The previous prime is 102449453. The next prime is 102449471. The reversal of 102449461 is 164944201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97891236 + 4558225 = 9894^2 + 2135^2 .

It is a cyclic number.

It is not a de Polignac number, because 102449461 - 2³ = 102449453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102449471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51224730 + 51224731.

It is an arithmetic number, because the mean of its divisors is an integer number (51224731).

Almost surely, 2^102449461 is an apocalyptic number.

It is an amenable number.

102449461 is a deficient number, since it is larger than the sum of its proper divisors (1).

102449461 is an equidigital number, since it uses as much as digits as its factorization.

102449461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 102449461 is about 10121.7321146136. The cubic root of 102449461 is about 467.9181514277.

The spelling of 102449461 in words is "one hundred two million, four hundred forty-nine thousand, four hundred sixty-one".