162661247 has 16 divisors (see below), whose sum is σ = 192460800. Its totient is φ = 134529120.

The previous prime is 162661241. The next prime is 162661271. The reversal of 162661247 is 742166261.

It is a cyclic number.

It is not a de Polignac number, because 162661247 - 2¹² = 162657151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162661241) 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, 90029 + ... + 91817.

It is an arithmetic number, because the mean of its divisors is an integer number (12028800).

Almost surely, 2^162661247 is an apocalyptic number.

162661247 is a deficient number, since it is larger than the sum of its proper divisors (29799553).

162661247 is a wasteful number, since it uses less digits than its factorization.

162661247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246.

The product of its digits is 24192, while the sum is 35.

The square root of 162661247 is about 12753.8718434835. The cubic root of 162661247 is about 545.8768780960.

The spelling of 162661247 in words is "one hundred sixty-two million, six hundred sixty-one thousand, two hundred forty-seven".