161122654 has 32 divisors (see below), whose sum is σ = 302466816. Its totient is φ = 62536320.

The previous prime is 161122639. The next prime is 161122681. The reversal of 161122654 is 456221161.

161122654 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×161122654³ (a number of 26 digits) contains 333 as substring.

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, 41734 + ... + 45430.

It is an arithmetic number, because the mean of its divisors is an integer number (9452088).

Almost surely, 2^161122654 is an apocalyptic number.

161122654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161122654 is a deficient number, since it is larger than the sum of its proper divisors (141344162).

161122654 is a wasteful number, since it uses less digits than its factorization.

161122654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000.

The product of its digits is 2880, while the sum is 28.

The square root of 161122654 is about 12693.4098649654. The cubic root of 161122654 is about 544.1502950323.

The spelling of 161122654 in words is "one hundred sixty-one million, one hundred twenty-two thousand, six hundred fifty-four".