161262627 has 4 divisors (see below), whose sum is σ = 215016840. Its totient is φ = 107508416.

The previous prime is 161262611. The next prime is 161262631. The reversal of 161262627 is 726262161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161262627 - 2⁴ = 161262611 is a prime.

It is a super-2 number, since 2×161262627² = 52011269733882258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161262667) 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, 26877102 + ... + 26877107.

It is an arithmetic number, because the mean of its divisors is an integer number (53754210).

Almost surely, 2^161262627 is an apocalyptic number.

161262627 is a deficient number, since it is larger than the sum of its proper divisors (53754213).

161262627 is an equidigital number, since it uses as much as digits as its factorization.

161262627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53754212.

The product of its digits is 12096, while the sum is 33.

The square root of 161262627 is about 12698.9222771068. The cubic root of 161262627 is about 544.3078236848.

The spelling of 161262627 in words is "one hundred sixty-one million, two hundred sixty-two thousand, six hundred twenty-seven".