751630149 has 18 divisors (see below), whose sum is σ = 1123787730. Its totient is φ = 483522816.

The previous prime is 751630127. The next prime is 751630151. The reversal of 751630149 is 941036157.

751630149 is a `hidden beast` number, since 7 + 5 + 1 + 630 + 14 + 9 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 529322049 + 222308100 = 23007^2 + 14910^2 .

It is not a de Polignac number, because 751630149 - 2¹² = 751626053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (751630169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 442069 + ... + 443765.

Almost surely, 2^751630149 is an apocalyptic number.

It is an amenable number.

751630149 is a deficient number, since it is larger than the sum of its proper divisors (372157581).

751630149 is an equidigital number, since it uses as much as digits as its factorization.

751630149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3429 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 751630149 is about 27415.8740331218. The cubic root of 751630149 is about 909.2180816996.

The spelling of 751630149 in words is "seven hundred fifty-one million, six hundred thirty thousand, one hundred forty-nine".