161125654 has 8 divisors (see below), whose sum is σ = 247583448. Its totient is φ = 78597840.

The previous prime is 161125651. The next prime is 161125661. The reversal of 161125654 is 456521161.

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

It is a super-2 number, since 2×161125654² = 51922952753855432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161125651) 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 3 ways as a sum of consecutive naturals, for example, 982392 + ... + 982555.

It is an arithmetic number, because the mean of its divisors is an integer number (30947931).

Almost surely, 2^161125654 is an apocalyptic number.

161125654 is a deficient number, since it is larger than the sum of its proper divisors (86457794).

161125654 is a wasteful number, since it uses less digits than its factorization.

161125654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964990.

The product of its digits is 7200, while the sum is 31.

The square root of 161125654 is about 12693.5280359717. The cubic root of 161125654 is about 544.1536722539.

The spelling of 161125654 in words is "one hundred sixty-one million, one hundred twenty-five thousand, six hundred fifty-four".