3152404421 has 4 divisors (see below), whose sum is σ = 3204083244. Its totient is φ = 3100725600.

The previous prime is 3152404417. The next prime is 3152404439. The reversal of 3152404421 is 1244042513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1244042513 = 7 ⋅177720359.

It can be written as a sum of positive squares in 2 ways, for example, as 66601921 + 3085802500 = 8161^2 + 55550^2 .

It is a cyclic number.

It is not a de Polignac number, because 3152404421 - 2² = 3152404417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3152404121) 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, 25839320 + ... + 25839441.

It is an arithmetic number, because the mean of its divisors is an integer number (801020811).

Almost surely, 2^3152404421 is an apocalyptic number.

It is an amenable number.

3152404421 is a deficient number, since it is larger than the sum of its proper divisors (51678823).

3152404421 is an equidigital number, since it uses as much as digits as its factorization.

3152404421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51678822.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 3152404421 is about 56146.2770003497. The cubic root of 3152404421 is about 1466.2700911660.

Adding to 3152404421 its reverse (1244042513), we get a palindrome (4396446934).

The spelling of 3152404421 in words is "three billion, one hundred fifty-two million, four hundred four thousand, four hundred twenty-one".