3215120542 has 4 divisors (see below), whose sum is σ = 4822680816. Its totient is φ = 1607560270.

The previous prime is 3215120533. The next prime is 3215120551. The reversal of 3215120542 is 2450215123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2450215123 = 89 ⋅27530507.

It is an interprime number because it is at equal distance from previous prime (3215120533) and next prime (3215120551).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 803780134 + ... + 803780137.

It is an arithmetic number, because the mean of its divisors is an integer number (1205670204).

Almost surely, 2^3215120542 is an apocalyptic number.

3215120542 is a deficient number, since it is larger than the sum of its proper divisors (1607560274).

3215120542 is a wasteful number, since it uses less digits than its factorization.

3215120542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607560273.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 3215120542 is about 56702.0329617907. The cubic root of 3215120542 is about 1475.9299763222.

Adding to 3215120542 its reverse (2450215123), we get a palindrome (5665335665).

The spelling of 3215120542 in words is "three billion, two hundred fifteen million, one hundred twenty thousand, five hundred forty-two".