1261230434 has 8 divisors (see below), whose sum is σ = 1892302428. Its totient is φ = 630462960.

The previous prime is 1261230427. The next prime is 1261230473. The reversal of 1261230434 is 4340321621.

It can be written as a sum of positive squares in 2 ways, for example, as 948824809 + 312405625 = 30803^2 + 17675^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65477 + ... + 82520.

Almost surely, 2^1261230434 is an apocalyptic number.

1261230434 is a deficient number, since it is larger than the sum of its proper divisors (631071994).

1261230434 is a wasteful number, since it uses less digits than its factorization.

1261230434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152260.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1261230434 is about 35513.8062448958. The cubic root of 1261230434 is about 1080.4337632346.

The spelling of 1261230434 in words is "one billion, two hundred sixty-one million, two hundred thirty thousand, four hundred thirty-four".