3126435481 has 4 divisors (see below), whose sum is σ = 3366930532. Its totient is φ = 2885940432.

The previous prime is 3126435479. The next prime is 3126435493. The reversal of 3126435481 is 1845346213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1845346213 = 8681 ⋅212573.

It can be written as a sum of positive squares in 2 ways, for example, as 969761881 + 2156673600 = 31141^2 + 46440^2 .

It is a cyclic number.

It is not a de Polignac number, because 3126435481 - 2¹ = 3126435479 is a prime.

It is a super-2 number, since 2×3126435481² = 19549197633711402722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3126435481.

It is not an unprimeable number, because it can be changed into a prime (3126405481) 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, 120247506 + ... + 120247531.

It is an arithmetic number, because the mean of its divisors is an integer number (841732633).

Almost surely, 2^3126435481 is an apocalyptic number.

It is an amenable number.

3126435481 is a deficient number, since it is larger than the sum of its proper divisors (240495051).

3126435481 is a wasteful number, since it uses less digits than its factorization.

3126435481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240495050.

The product of its digits is 69120, while the sum is 37.

The square root of 3126435481 is about 55914.5372957695. The cubic root of 3126435481 is about 1462.2326946732.

The spelling of 3126435481 in words is "three billion, one hundred twenty-six million, four hundred thirty-five thousand, four hundred eighty-one".