742163297121 has 21 divisors (see below), whose sum is σ = 1112770792801. Its totient is φ = 494760024612.

The previous prime is 742163297053. The next prime is 742163297131. The reversal of 742163297121 is 121792361247.

The square root of 742163297121 is 861489.

It is a perfect power (a square), and thus also a powerful number.

742163297121 is a `hidden beast` number, since 7 + 4 + 2 + 1 + 632 + 9 + 7 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 742163297121 - 2¹³ = 742163288929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (742163297131) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 23244250 + ... + 23276156.

Almost surely, 2^742163297121 is an apocalyptic number.

742163297121 is the 861489-th square number.

742163297121 is the 430745-th centered octagonal number.

It is an amenable number.

742163297121 is a deficient number, since it is larger than the sum of its proper divisors (370607495680).

742163297121 is an frugal number, since it uses more digits than its factorization.

742163297121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63832 (or 31910 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The spelling of 742163297121 in words is "seven hundred forty-two billion, one hundred sixty-three million, two hundred ninety-seven thousand, one hundred twenty-one".