161264602 has 8 divisors (see below), whose sum is σ = 245862612. Its totient is φ = 79310400.

The previous prime is 161264599. The next prime is 161264627. The reversal of 161264602 is 206462161.

It is a Cunningham number, because it is equal to 12699²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 161264601 + 1 = 12699^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660799 + ... + 661042.

Almost surely, 2^161264602 is an apocalyptic number.

161264602 is a deficient number, since it is larger than the sum of its proper divisors (84598010).

161264602 is a wasteful number, since it uses less digits than its factorization.

161264602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321904.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 161264602 is about 12699.0000393732. Note that the first 4 decimals coincide. The cubic root of 161264602 is about 544.3100457404.

The spelling of 161264602 in words is "one hundred sixty-one million, two hundred sixty-four thousand, six hundred two".