126201402 has 20 divisors (see below), whose sum is σ = 282784986. Its totient is φ = 42067080.

The previous prime is 126201389. The next prime is 126201407. The reversal of 126201402 is 204102621.

126201402 is a `hidden beast` number, since 1 + 2 + 620 + 1 + 40 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 101787921 + 24413481 = 10089^2 + 4941^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (126201407) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 389349 + ... + 389672.

Almost surely, 2^126201402 is an apocalyptic number.

126201402 is an abundant number, since it is smaller than the sum of its proper divisors (156583584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126201402 is an equidigital number, since it uses as much as digits as its factorization.

126201402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779035 (or 779026 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 126201402 is about 11233.9397363525. The cubic root of 126201402 is about 501.5967645907.

The spelling of 126201402 in words is "one hundred twenty-six million, two hundred one thousand, four hundred two".