102701421 has 6 divisors (see below), whose sum is σ = 148346510. Its totient is φ = 68467608.

The previous prime is 102701411. The next prime is 102701449. The reversal of 102701421 is 124107201.

It can be written as a sum of positive squares in only one way, i.e., 52490025 + 50211396 = 7245^2 + 7086^2 .

It is not a de Polignac number, because 102701421 - 2¹⁸ = 102439277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102701394 and 102701403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102701411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5705626 + ... + 5705643.

Almost surely, 2^102701421 is an apocalyptic number.

It is an amenable number.

102701421 is a deficient number, since it is larger than the sum of its proper divisors (45645089).

102701421 is a wasteful number, since it uses less digits than its factorization.

102701421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11411275 (or 11411272 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 102701421 is about 10134.1709577054. The cubic root of 102701421 is about 468.3014302921.

Adding to 102701421 its reverse (124107201), we get a palindrome (226808622).

The spelling of 102701421 in words is "one hundred two million, seven hundred one thousand, four hundred twenty-one".