61051069 has 2 divisors, whose sum is σ = 61051070. Its totient is φ = 61051068.

The previous prime is 61051051. The next prime is 61051103. The reversal of 61051069 is 96015016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61042969 + 8100 = 7813^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 61051069 - 2⁵ = 61051037 is a prime.

It is a super-2 number, since 2×61051069² = 7454466052085522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61051169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30525534 + 30525535.

It is an arithmetic number, because the mean of its divisors is an integer number (30525535).

Almost surely, 2^61051069 is an apocalyptic number.

It is an amenable number.

61051069 is a deficient number, since it is larger than the sum of its proper divisors (1).

61051069 is an equidigital number, since it uses as much as digits as its factorization.

61051069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 61051069 is about 7813.5183496297. The cubic root of 61051069 is about 393.7595417525.

The spelling of 61051069 in words is "sixty-one million, fifty-one thousand, sixty-nine".