1267113772 has 12 divisors (see below), whose sum is σ = 2218406400. Its totient is φ = 633283376.

The previous prime is 1267113763. The next prime is 1267113821. The reversal of 1267113772 is 2773117621.

It is a happy number.

It is a super-2 number, since 2×1267113772² = 3211154622384135968, which contains 22 as substring.

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, 57772 + ... + 76627.

It is an arithmetic number, because the mean of its divisors is an integer number (184867200).

Almost surely, 2^1267113772 is an apocalyptic number.

It is an amenable number.

1267113772 is a deficient number, since it is larger than the sum of its proper divisors (951292628).

1267113772 is a wasteful number, since it uses less digits than its factorization.

1267113772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136760 (or 136758 counting only the distinct ones).

The product of its digits is 24696, while the sum is 37.

The square root of 1267113772 is about 35596.5415735855. The cubic root of 1267113772 is about 1082.1111460086. Note that the first 4 decimals are identical.

The spelling of 1267113772 in words is "one billion, two hundred sixty-seven million, one hundred thirteen thousand, seven hundred seventy-two".