70257541 has 2 divisors, whose sum is σ = 70257542. Its totient is φ = 70257540.

The previous prime is 70257533. The next prime is 70257569. The reversal of 70257541 is 14575207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37149025 + 33108516 = 6095^2 + 5754^2 .

It is a cyclic number.

It is not a de Polignac number, because 70257541 - 2³ = 70257533 is a prime.

It is a super-2 number, since 2×70257541² = 9872244134733362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70257521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35128770 + 35128771.

It is an arithmetic number, because the mean of its divisors is an integer number (35128771).

Almost surely, 2^70257541 is an apocalyptic number.

It is an amenable number.

70257541 is a deficient number, since it is larger than the sum of its proper divisors (1).

70257541 is an equidigital number, since it uses as much as digits as its factorization.

70257541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 70257541 is about 8381.9771533929. The cubic root of 70257541 is about 412.6333399360.

The spelling of 70257541 in words is "seventy million, two hundred fifty-seven thousand, five hundred forty-one".