309147356059 has 4 divisors (see below), whose sum is σ = 309149676000. Its totient is φ = 309145036120.

The previous prime is 309147356057. The next prime is 309147356069. The reversal of 309147356059 is 950653741903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 950653741903 = 83 ⋅11453659541.

It is a cyclic number.

It is not a de Polignac number, because 309147356059 - 2¹ = 309147356057 is a prime.

It is a super-2 number, since 2×309147356059² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 309147355997 and 309147356015.

It is not an unprimeable number, because it can be changed into a prime (309147356057) 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, 947059 + ... + 1230940.

It is an arithmetic number, because the mean of its divisors is an integer number (77287419000).

Almost surely, 2^309147356059 is an apocalyptic number.

309147356059 is a deficient number, since it is larger than the sum of its proper divisors (2319941).

309147356059 is a wasteful number, since it uses less digits than its factorization.

309147356059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319940.

The product of its (nonzero) digits is 3061800, while the sum is 52.

The spelling of 309147356059 in words is "three hundred nine billion, one hundred forty-seven million, three hundred fifty-six thousand, fifty-nine".