3135752421 has 8 divisors (see below), whose sum is σ = 4187985600. Its totient is φ = 2087010432.

The previous prime is 3135752413. The next prime is 3135752429. The reversal of 3135752421 is 1242575313.

It is an interprime number because it is at equal distance from previous prime (3135752413) and next prime (3135752429).

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

It is not a de Polignac number, because 3135752421 - 2³ = 3135752413 is a prime.

It is a super-3 number, since 3×3135752421³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3135752429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 870700 + ... + 874293.

It is an arithmetic number, because the mean of its divisors is an integer number (523498200).

Almost surely, 2^3135752421 is an apocalyptic number.

It is an amenable number.

3135752421 is a deficient number, since it is larger than the sum of its proper divisors (1052233179).

3135752421 is a wasteful number, since it uses less digits than its factorization.

3135752421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745595.

The product of its digits is 25200, while the sum is 33.

The square root of 3135752421 is about 55997.7894295837. The cubic root of 3135752421 is about 1463.6837639798.

The spelling of 3135752421 in words is "three billion, one hundred thirty-five million, seven hundred fifty-two thousand, four hundred twenty-one".