1403254161 has 6 divisors (see below), whose sum is σ = 2026922690. Its totient is φ = 935502768.

The previous prime is 1403254159. The next prime is 1403254199. The reversal of 1403254161 is 1614523041.

It is a happy number.

1403254161 is a `hidden beast` number, since 1 + 403 + 254 + 1 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1157360400 + 245893761 = 34020^2 + 15681^2 .

It is not a de Polignac number, because 1403254161 - 2¹ = 1403254159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1403254141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77958556 + ... + 77958573.

Almost surely, 2^1403254161 is an apocalyptic number.

It is an amenable number.

1403254161 is a deficient number, since it is larger than the sum of its proper divisors (623668529).

1403254161 is a wasteful number, since it uses less digits than its factorization.

1403254161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155917135 (or 155917132 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1403254161 is about 37460.0341831131. The cubic root of 1403254161 is about 1119.5550318397. Note that the first 3 decimals are identical.

The spelling of 1403254161 in words is "one billion, four hundred three million, two hundred fifty-four thousand, one hundred sixty-one".