201402979 has 2 divisors, whose sum is σ = 201402980. Its totient is φ = 201402978.

The previous prime is 201402959. The next prime is 201403009. The reversal of 201402979 is 979204102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201402979 is a prime.

It is not a weakly prime, because it can be changed into another prime (201402959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100701489 + 100701490.

It is an arithmetic number, because the mean of its divisors is an integer number (100701490).

Almost surely, 2^201402979 is an apocalyptic number.

201402979 is a deficient number, since it is larger than the sum of its proper divisors (1).

201402979 is an equidigital number, since it uses as much as digits as its factorization.

201402979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 201402979 is about 14191.6517361440. The cubic root of 201402979 is about 586.1678077118.

The spelling of 201402979 in words is "two hundred one million, four hundred two thousand, nine hundred seventy-nine".