75772142 has 8 divisors (see below), whose sum is σ = 114078432. Its totient is φ = 37746000.

The previous prime is 75772127. The next prime is 75772159. The reversal of 75772142 is 24127757.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69359 + ... + 70442.

It is an arithmetic number, because the mean of its divisors is an integer number (14259804).

Almost surely, 2^75772142 is an apocalyptic number.

75772142 is a deficient number, since it is larger than the sum of its proper divisors (38306290).

75772142 is a wasteful number, since it uses less digits than its factorization.

75772142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140074.

The product of its digits is 27440, while the sum is 35.

The square root of 75772142 is about 8704.7195244879. The cubic root of 75772142 is about 423.1586161162.

Adding to 75772142 its reverse (24127757), we get a palindrome (99899899).

The spelling of 75772142 in words is "seventy-five million, seven hundred seventy-two thousand, one hundred forty-two".