161626027 has 16 divisors (see below), whose sum is σ = 177642400. Its totient is φ = 146499840.

The previous prime is 161625979. The next prime is 161626039. The reversal of 161626027 is 720626161.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 161626027 - 2¹⁹ = 161101739 is a prime.

It is a super-2 number, since 2×161626027² = 52245945207609458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161626027.

It is not an unprimeable number, because it can be changed into a prime (161626057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40999 + ... + 44767.

It is an arithmetic number, because the mean of its divisors is an integer number (11102650).

Almost surely, 2^161626027 is an apocalyptic number.

161626027 is a deficient number, since it is larger than the sum of its proper divisors (16016373).

161626027 is a wasteful number, since it uses less digits than its factorization.

161626027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 161626027 is about 12713.2225261733. Note that the first 3 decimals coincide. The cubic root of 161626027 is about 544.7163768482.

The spelling of 161626027 in words is "one hundred sixty-one million, six hundred twenty-six thousand, twenty-seven".