161026460 has 48 divisors (see below), whose sum is σ = 392254464. Its totient is φ = 54381888.

The previous prime is 161026451. The next prime is 161026583. The reversal of 161026460 is 64620161.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797 + ... + 17963.

It is an arithmetic number, because the mean of its divisors is an integer number (8171968).

Almost surely, 2^161026460 is an apocalyptic number.

161026460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161026460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196127232).

161026460 is an abundant number, since it is smaller than the sum of its proper divisors (231228004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161026460 is a wasteful number, since it uses less digits than its factorization.

161026460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17250 (or 17248 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 161026460 is about 12689.6201676804. The cubic root of 161026460 is about 544.0419833155.

The spelling of 161026460 in words is "one hundred sixty-one million, twenty-six thousand, four hundred sixty".