75151982 has 8 divisors (see below), whose sum is σ = 113225256. Its totient is φ = 37410232.

The previous prime is 75151981. The next prime is 75152023. The reversal of 75151982 is 28915157.

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

It is a super-3 number, since 3×75151982³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75151981) 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, 82313 + ... + 83220.

It is an arithmetic number, because the mean of its divisors is an integer number (14153157).

Almost surely, 2^75151982 is an apocalyptic number.

75151982 is a deficient number, since it is larger than the sum of its proper divisors (38073274).

75151982 is a wasteful number, since it uses less digits than its factorization.

75151982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165762.

The product of its digits is 25200, while the sum is 38.

The square root of 75151982 is about 8669.0242818901. The cubic root of 75151982 is about 422.0009995259. Note that the first 3 decimals are identical.

The spelling of 75151982 in words is "seventy-five million, one hundred fifty-one thousand, nine hundred eighty-two".