161752426 has 16 divisors (see below), whose sum is σ = 265456800. Its totient is φ = 73309680.

The previous prime is 161752417. The next prime is 161752429. The reversal of 161752426 is 624257161.

It is a junction number, because it is equal to n+sod(n) for n = 161752391 and 161752400.

It is not an unprimeable number, because it can be changed into a prime (161752429) 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, 2856 + ... + 18211.

It is an arithmetic number, because the mean of its divisors is an integer number (16591050).

Almost surely, 2^161752426 is an apocalyptic number.

161752426 is a deficient number, since it is larger than the sum of its proper divisors (103704374).

161752426 is a wasteful number, since it uses less digits than its factorization.

161752426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21429.

The product of its digits is 20160, while the sum is 34.

The square root of 161752426 is about 12718.1927175208. The cubic root of 161752426 is about 544.8583376161.

It can be divided in two parts, 16 and 1752426, that multiplied together give a triangular number (28038816 = T₇₄₈₈).

The spelling of 161752426 in words is "one hundred sixty-one million, seven hundred fifty-two thousand, four hundred twenty-six".