751400231 has 2 divisors, whose sum is σ = 751400232. Its totient is φ = 751400230.

The previous prime is 751400219. The next prime is 751400261. The reversal of 751400231 is 132004157.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-751400231 is a prime.

It is a super-2 number, since 2×751400231² = 1129204614293706722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 751400197 and 751400206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (751400261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 375700115 + 375700116.

It is an arithmetic number, because the mean of its divisors is an integer number (375700116).

Almost surely, 2^751400231 is an apocalyptic number.

751400231 is a deficient number, since it is larger than the sum of its proper divisors (1).

751400231 is an equidigital number, since it uses as much as digits as its factorization.

751400231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 751400231 is about 27411.6805577476. The cubic root of 751400231 is about 909.1253645914.

Adding to 751400231 its reverse (132004157), we get a palindrome (883404388).

The spelling of 751400231 in words is "seven hundred fifty-one million, four hundred thousand, two hundred thirty-one".