161298651 has 8 divisors (see below), whose sum is σ = 220877584. Its totient is φ = 104626080.

The previous prime is 161298637. The next prime is 161298661. The reversal of 161298651 is 156892161.

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

It is not a de Polignac number, because 161298651 - 2⁷ = 161298523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161298661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726460 + ... + 726681.

It is an arithmetic number, because the mean of its divisors is an integer number (27609698).

Almost surely, 2^161298651 is an apocalyptic number.

161298651 is a deficient number, since it is larger than the sum of its proper divisors (59578933).

161298651 is a wasteful number, since it uses less digits than its factorization.

161298651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453181.

The product of its digits is 25920, while the sum is 39.

The square root of 161298651 is about 12700.3405859843. The cubic root of 161298651 is about 544.3483511266.

The spelling of 161298651 in words is "one hundred sixty-one million, two hundred ninety-eight thousand, six hundred fifty-one".