161241792 has 28 divisors (see below), whose sum is σ = 426619416. Its totient is φ = 53747200.

The previous prime is 161241791. The next prime is 161241793. The reversal of 161241792 is 297142161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (161241791) and next prime (161241793).

It is not an unprimeable number, because it can be changed into a prime (161241791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419709 + ... + 420092.

Almost surely, 2^161241792 is an apocalyptic number.

161241792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161241792 is an abundant number, since it is smaller than the sum of its proper divisors (265377624).

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

161241792 is an equidigital number, since it uses as much as digits as its factorization.

161241792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839816 (or 839806 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 161241792 is about 12698.1019054030. The cubic root of 161241792 is about 544.2843812995.

The spelling of 161241792 in words is "one hundred sixty-one million, two hundred forty-one thousand, seven hundred ninety-two".