1070215931 has 2 divisors, whose sum is σ = 1070215932. Its totient is φ = 1070215930.

The previous prime is 1070215889. The next prime is 1070215933. The reversal of 1070215931 is 1395120701.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1070215931 - 2¹⁰ = 1070214907 is a prime.

It is a super-2 number, since 2×1070215931² = 2290724277932393522, which contains 22 as substring.

Together with 1070215933, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1070215894 and 1070215903.

It is not a weakly prime, because it can be changed into another prime (1070215933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535107965 + 535107966.

It is an arithmetic number, because the mean of its divisors is an integer number (535107966).

Almost surely, 2^1070215931 is an apocalyptic number.

1070215931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1070215931 is an equidigital number, since it uses as much as digits as its factorization.

1070215931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 1070215931 is about 32714.1549027329. The cubic root of 1070215931 is about 1022.8779196954.

The spelling of 1070215931 in words is "one billion, seventy million, two hundred fifteen thousand, nine hundred thirty-one".