743025036121 has 9 divisors (see below), whose sum is σ = 763682324349. Its totient is φ = 722912246784.

The previous prime is 743025036113. The next prime is 743025036161. The reversal of 743025036121 is 121630520347.

The square root of 743025036121 is 861989.

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

It can be written as a sum of positive squares in 4 ways, for example, as 15515721 + 743009520400 = 3939^2 + 861980^2 .

It is not a de Polignac number, because 743025036121 - 2³ = 743025036113 is a prime.

It is a super-2 number, since 2×743025036121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (743025036161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 31881945 + ... + 31905241.

Almost surely, 2^743025036121 is an apocalyptic number.

743025036121 is the 861989-th square number.

743025036121 is the 430995-th centered octagonal number.

It is an amenable number.

743025036121 is a deficient number, since it is larger than the sum of its proper divisors (20657288228).

743025036121 is an frugal number, since it uses more digits than its factorization.

743025036121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46668 (or 23334 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

Adding to 743025036121 its reverse (121630520347), we get a palindrome (864655556468).

The spelling of 743025036121 in words is "seven hundred forty-three billion, twenty-five million, thirty-six thousand, one hundred twenty-one".