912749111 has 4 divisors (see below), whose sum is σ = 915157800. Its totient is φ = 910340424.

The previous prime is 912749087. The next prime is 912749129. The reversal of 912749111 is 111947219.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 912749111 - 2²⁶ = 845640247 is a prime.

It is a super-2 number, since 2×912749111² = 1666221879262580642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (912749141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1203776 + ... + 1204533.

It is an arithmetic number, because the mean of its divisors is an integer number (228789450).

Almost surely, 2^912749111 is an apocalyptic number.

912749111 is a deficient number, since it is larger than the sum of its proper divisors (2408689).

912749111 is a wasteful number, since it uses less digits than its factorization.

912749111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408688.

The product of its digits is 4536, while the sum is 35.

The square root of 912749111 is about 30211.7379672206. The cubic root of 912749111 is about 970.0269631503.

The spelling of 912749111 in words is "nine hundred twelve million, seven hundred forty-nine thousand, one hundred eleven".