1402113161 has 4 divisors (see below), whose sum is σ = 1402935300. Its totient is φ = 1401291024.

The previous prime is 1402113103. The next prime is 1402113179. The reversal of 1402113161 is 1613112041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 270799936 + 1131313225 = 16456^2 + 33635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402113161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1402119161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408506 + ... + 411923.

It is an arithmetic number, because the mean of its divisors is an integer number (350733825).

Almost surely, 2^1402113161 is an apocalyptic number.

It is an amenable number.

1402113161 is a deficient number, since it is larger than the sum of its proper divisors (822139).

1402113161 is an equidigital number, since it uses as much as digits as its factorization.

1402113161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822138.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1402113161 is about 37444.8015217066. The cubic root of 1402113161 is about 1119.2515090927.

The spelling of 1402113161 in words is "one billion, four hundred two million, one hundred thirteen thousand, one hundred sixty-one".