69261131 has 2 divisors, whose sum is σ = 69261132. Its totient is φ = 69261130.

The previous prime is 69261109. The next prime is 69261149. The reversal of 69261131 is 13116296.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69261131 - 2⁶ = 69261067 is a prime.

It is a super-2 number, since 2×69261131² = 9594208534798322, 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 = 69261094 and 69261103.

It is not a weakly prime, because it can be changed into another prime (69261431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34630565 + 34630566.

It is an arithmetic number, because the mean of its divisors is an integer number (34630566).

Almost surely, 2^69261131 is an apocalyptic number.

69261131 is a deficient number, since it is larger than the sum of its proper divisors (1).

69261131 is an equidigital number, since it uses as much as digits as its factorization.

69261131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 29.

The square root of 69261131 is about 8322.3272586459. The cubic root of 69261131 is about 410.6733551535.

The spelling of 69261131 in words is "sixty-nine million, two hundred sixty-one thousand, one hundred thirty-one".