1020401147 has 2 divisors, whose sum is σ = 1020401148. Its totient is φ = 1020401146.

The previous prime is 1020401143. The next prime is 1020401167. The reversal of 1020401147 is 7411040201.

It is an a-pointer prime, because the next prime (1020401167) can be obtained adding 1020401147 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020401147 - 2² = 1020401143 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020401143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510200573 + 510200574.

It is an arithmetic number, because the mean of its divisors is an integer number (510200574).

Almost surely, 2^1020401147 is an apocalyptic number.

1020401147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020401147 is an equidigital number, since it uses as much as digits as its factorization.

1020401147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1020401147 is about 31943.7184278850. The cubic root of 1020401147 is about 1006.7546542514.

Adding to 1020401147 its reverse (7411040201), we get a palindrome (8431441348).

The spelling of 1020401147 in words is "one billion, twenty million, four hundred one thousand, one hundred forty-seven".