70567231 has 4 divisors (see below), whose sum is σ = 80648272. Its totient is φ = 60486192.

The previous prime is 70567229. The next prime is 70567241. The reversal of 70567231 is 13276507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13276507 = 17 ⋅780971.

It is a cyclic number.

It is not a de Polignac number, because 70567231 - 2¹ = 70567229 is a prime.

It is a super-2 number, since 2×70567231² = 9959468182014722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70567193 and 70567202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70567241) 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, 5040510 + ... + 5040523.

It is an arithmetic number, because the mean of its divisors is an integer number (20162068).

Almost surely, 2^70567231 is an apocalyptic number.

70567231 is a deficient number, since it is larger than the sum of its proper divisors (10081041).

70567231 is a wasteful number, since it uses less digits than its factorization.

70567231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10081040.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 70567231 is about 8400.4304056399. The cubic root of 70567231 is about 413.2387369514.

The spelling of 70567231 in words is "seventy million, five hundred sixty-seven thousand, two hundred thirty-one".