402149147 has 2 divisors, whose sum is σ = 402149148. Its totient is φ = 402149146.

The previous prime is 402149141. The next prime is 402149159. The reversal of 402149147 is 741941204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402149147 - 2⁸ = 402148891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (402149141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201074573 + 201074574.

It is an arithmetic number, because the mean of its divisors is an integer number (201074574).

Almost surely, 2^402149147 is an apocalyptic number.

402149147 is a deficient number, since it is larger than the sum of its proper divisors (1).

402149147 is an equidigital number, since it uses as much as digits as its factorization.

402149147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 402149147 is about 20053.6566989664. The cubic root of 402149147 is about 738.1235309748.

The spelling of 402149147 in words is "four hundred two million, one hundred forty-nine thousand, one hundred forty-seven".