102001477 has 2 divisors, whose sum is σ = 102001478. Its totient is φ = 102001476.

The previous prime is 102001453. The next prime is 102001499. The reversal of 102001477 is 774100201.

It is an a-pointer prime, because the next prime (102001499) can be obtained adding 102001477 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99022401 + 2979076 = 9951^2 + 1726^2 .

It is a cyclic number.

It is not a de Polignac number, because 102001477 - 2⁷ = 102001349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102001777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000738 + 51000739.

It is an arithmetic number, because the mean of its divisors is an integer number (51000739).

Almost surely, 2^102001477 is an apocalyptic number.

It is an amenable number.

102001477 is a deficient number, since it is larger than the sum of its proper divisors (1).

102001477 is an equidigital number, since it uses as much as digits as its factorization.

102001477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 102001477 is about 10099.5780604934. The cubic root of 102001477 is about 467.2351280630.

Adding to 102001477 its reverse (774100201), we get a palindrome (876101678).

The spelling of 102001477 in words is "one hundred two million, one thousand, four hundred seventy-seven".