1261467772 has 6 divisors (see below), whose sum is σ = 2207568608. Its totient is φ = 630733884.

The previous prime is 1261467763. The next prime is 1261467793. The reversal of 1261467772 is 2777641621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157683468 + ... + 157683475.

Almost surely, 2^1261467772 is an apocalyptic number.

It is an amenable number.

1261467772 is a deficient number, since it is larger than the sum of its proper divisors (946100836).

1261467772 is a wasteful number, since it uses less digits than its factorization.

1261467772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315366947 (or 315366945 counting only the distinct ones).

The product of its digits is 197568, while the sum is 43.

The square root of 1261467772 is about 35517.1475769099. The cubic root of 1261467772 is about 1080.5015308945.

The spelling of 1261467772 in words is "one billion, two hundred sixty-one million, four hundred sixty-seven thousand, seven hundred seventy-two".