1204743231 has 6 divisors (see below), whose sum is σ = 1740184680. Its totient is φ = 803162148.

The previous prime is 1204743191. The next prime is 1204743247. The reversal of 1204743231 is 1323474021.

It is a happy number.

It is not a de Polignac number, because 1204743231 - 2⁶ = 1204743167 is a prime.

It is a super-2 number, since 2×1204743231² = 2902812505280638722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1204743195 and 1204743204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204743271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66930171 + ... + 66930188.

It is an arithmetic number, because the mean of its divisors is an integer number (290030780).

Almost surely, 2^1204743231 is an apocalyptic number.

1204743231 is a deficient number, since it is larger than the sum of its proper divisors (535441449).

1204743231 is a wasteful number, since it uses less digits than its factorization.

1204743231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133860365 (or 133860362 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 1204743231 is about 34709.4112741775. The cubic root of 1204743231 is about 1064.0568493260.

It can be divided in two parts, 12047 and 43231, that added together give a triangular number (55278 = T₃₃₂).

The spelling of 1204743231 in words is "one billion, two hundred four million, seven hundred forty-three thousand, two hundred thirty-one".