751064242 has 4 divisors (see below), whose sum is σ = 1126596366. Its totient is φ = 375532120.

The previous prime is 751064191. The next prime is 751064263. The reversal of 751064242 is 242460157.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 425225641 + 325838601 = 20621^2 + 18051^2 .

It is a super-2 number, since 2×751064242² = 1128194991222069128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 187766059 + ... + 187766062.

Almost surely, 2^751064242 is an apocalyptic number.

751064242 is a deficient number, since it is larger than the sum of its proper divisors (375532124).

751064242 is a wasteful number, since it uses less digits than its factorization.

751064242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375532123.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 751064242 is about 27405.5512989613. The cubic root of 751064242 is about 908.9898390977.

The spelling of 751064242 in words is "seven hundred fifty-one million, sixty-four thousand, two hundred forty-two".