751420133 has 4 divisors (see below), whose sum is σ = 754094508. Its totient is φ = 748745760.

The previous prime is 751420093. The next prime is 751420199. The reversal of 751420133 is 331024157.

751420133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 610238209 + 141181924 = 24703^2 + 11882^2 .

It is a cyclic number.

It is not a de Polignac number, because 751420133 - 2¹⁴ = 751403749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (751420433) 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, 1336766 + ... + 1337327.

It is an arithmetic number, because the mean of its divisors is an integer number (188523627).

Almost surely, 2^751420133 is an apocalyptic number.

It is an amenable number.

751420133 is a deficient number, since it is larger than the sum of its proper divisors (2674375).

751420133 is a wasteful number, since it uses less digits than its factorization.

751420133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674374.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 751420133 is about 27412.0435757716. The cubic root of 751420133 is about 909.1333910521.

The spelling of 751420133 in words is "seven hundred fifty-one million, four hundred twenty thousand, one hundred thirty-three".