31354126147 has 4 divisors (see below), whose sum is σ = 31443966400. Its totient is φ = 31264285896.

The previous prime is 31354126129. The next prime is 31354126183. The reversal of 31354126147 is 74162145313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74162145313 = 51461 ⋅1441133.

It is a cyclic number.

It is not a de Polignac number, because 31354126147 - 2⁷ = 31354126019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31354126247) 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, 44919603 + ... + 44920300.

It is an arithmetic number, because the mean of its divisors is an integer number (7860991600).

Almost surely, 2^31354126147 is an apocalyptic number.

31354126147 is a deficient number, since it is larger than the sum of its proper divisors (89840253).

31354126147 is an equidigital number, since it uses as much as digits as its factorization.

31354126147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89840252.

The product of its digits is 60480, while the sum is 37.

The spelling of 31354126147 in words is "thirty-one billion, three hundred fifty-four million, one hundred twenty-six thousand, one hundred forty-seven".