161574098 has 16 divisors (see below), whose sum is σ = 277470144. Its totient is φ = 69124560.

The previous prime is 161574097. The next prime is 161574107. The reversal of 161574098 is 890475161.

It is a super-2 number, since 2×161574098² = 52212378289027208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161574097) 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 7 ways as a sum of consecutive naturals, for example, 1613 + ... + 18048.

It is an arithmetic number, because the mean of its divisors is an integer number (17341884).

Almost surely, 2^161574098 is an apocalyptic number.

161574098 is a deficient number, since it is larger than the sum of its proper divisors (115896046).

161574098 is a wasteful number, since it uses less digits than its factorization.

161574098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20257.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 161574098 is about 12711.1800396344. The cubic root of 161574098 is about 544.6580330958.

The spelling of 161574098 in words is "one hundred sixty-one million, five hundred seventy-four thousand, ninety-eight".