31145124155135 has 8 divisors (see below), whose sum is σ = 37445884400016. Its totient is φ = 24868275714880.

The previous prime is 31145124155053. The next prime is 31145124155147. The reversal of 31145124155135 is 53155142154113.

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

It is a de Polignac number, because none of the positive numbers 2^k-31145124155135 is a prime.

It is a super-4 number, since 4×31145124155135⁴ (a number of 55 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31145124155092 and 31145124155101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5977948289 + ... + 5977953498.

It is an arithmetic number, because the mean of its divisors is an integer number (4680735550002).

Almost surely, 2^{31145124155135} is an apocalyptic number.

31145124155135 is a deficient number, since it is larger than the sum of its proper divisors (6300760244881).

31145124155135 is a wasteful number, since it uses less digits than its factorization.

31145124155135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11955902313.

The product of its digits is 180000, while the sum is 41.

The spelling of 31145124155135 in words is "thirty-one trillion, one hundred forty-five billion, one hundred twenty-four million, one hundred fifty-five thousand, one hundred thirty-five".