70361231 has 2 divisors, whose sum is σ = 70361232. Its totient is φ = 70361230.

The previous prime is 70361197. The next prime is 70361251. The reversal of 70361231 is 13216307.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70361231 - 2¹⁰ = 70360207 is a prime.

It is a super-2 number, since 2×70361231² = 9901405655670722, 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 = 70361197 and 70361206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70361251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35180615 + 35180616.

It is an arithmetic number, because the mean of its divisors is an integer number (35180616).

Almost surely, 2^70361231 is an apocalyptic number.

70361231 is a deficient number, since it is larger than the sum of its proper divisors (1).

70361231 is an equidigital number, since it uses as much as digits as its factorization.

70361231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 70361231 is about 8388.1601677603. The cubic root of 70361231 is about 412.8362359242.

Adding to 70361231 its reverse (13216307), we get a palindrome (83577538).

The spelling of 70361231 in words is "seventy million, three hundred sixty-one thousand, two hundred thirty-one".