28615142 has 8 divisors (see below), whose sum is σ = 43020936. Its totient is φ = 14274832.

The previous prime is 28615127. The next prime is 28615157. The reversal of 28615142 is 24151682.

It is an interprime number because it is at equal distance from previous prime (28615127) and next prime (28615157).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15263 + ... + 17034.

It is an arithmetic number, because the mean of its divisors is an integer number (5377617).

Almost surely, 2^28615142 is an apocalyptic number.

28615142 is a deficient number, since it is larger than the sum of its proper divisors (14405794).

28615142 is a wasteful number, since it uses less digits than its factorization.

28615142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32742.

The product of its digits is 3840, while the sum is 29.

The square root of 28615142 is about 5349.3122922484. The cubic root of 28615142 is about 305.8665386925.

The spelling of 28615142 in words is "twenty-eight million, six hundred fifteen thousand, one hundred forty-two".