311456145549 has 8 divisors (see below), whose sum is σ = 415411431552. Its totient is φ = 207569144960.

The previous prime is 311456145527. The next prime is 311456145557. The reversal of 311456145549 is 945541654113.

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

It is a cyclic number.

It is not a de Polignac number, because 311456145549 - 2⁸ = 311456145293 is a prime.

It is a super-2 number, since 2×311456145549² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311456145498 and 311456145507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311456145589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17060709 + ... + 17078954.

It is an arithmetic number, because the mean of its divisors is an integer number (51926428944).

Almost surely, 2^311456145549 is an apocalyptic number.

It is an amenable number.

311456145549 is a deficient number, since it is larger than the sum of its proper divisors (103955286003).

311456145549 is a wasteful number, since it uses less digits than its factorization.

311456145549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34142707.

The product of its digits is 1296000, while the sum is 48.

The spelling of 311456145549 in words is "three hundred eleven billion, four hundred fifty-six million, one hundred forty-five thousand, five hundred forty-nine".