902663161 has 4 divisors (see below), whose sum is σ = 955761012. Its totient is φ = 849565312.

The previous prime is 902663147. The next prime is 902663183. The reversal of 902663161 is 161366209.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161366209 = 12703².

It can be written as a sum of positive squares in 2 ways, for example, as 554131600 + 348531561 = 23540^2 + 18669^2 .

It is a cyclic number.

It is not a de Polignac number, because 902663161 - 2⁷ = 902663033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (902663131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26548900 + ... + 26548933.

It is an arithmetic number, because the mean of its divisors is an integer number (238940253).

Almost surely, 2^902663161 is an apocalyptic number.

It is an amenable number.

902663161 is a deficient number, since it is larger than the sum of its proper divisors (53097851).

902663161 is a wasteful number, since it uses less digits than its factorization.

902663161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53097850.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 902663161 is about 30044.3532298500. The cubic root of 902663161 is about 966.4407630000.

The spelling of 902663161 in words is "nine hundred two million, six hundred sixty-three thousand, one hundred sixty-one".