70121741 has 2 divisors, whose sum is σ = 70121742. Its totient is φ = 70121740.

The previous prime is 70121729. The next prime is 70121749. The reversal of 70121741 is 14712107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49646116 + 20475625 = 7046^2 + 4525^2 .

It is an emirp because it is prime and its reverse (14712107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70121741 - 2¹⁸ = 69859597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70121749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35060870 + 35060871.

It is an arithmetic number, because the mean of its divisors is an integer number (35060871).

Almost surely, 2^70121741 is an apocalyptic number.

It is an amenable number.

70121741 is a deficient number, since it is larger than the sum of its proper divisors (1).

70121741 is an equidigital number, since it uses as much as digits as its factorization.

70121741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 70121741 is about 8373.8725211219. The cubic root of 70121741 is about 412.3673103677.

Adding to 70121741 its reverse (14712107), we get a palindrome (84833848).

The spelling of 70121741 in words is "seventy million, one hundred twenty-one thousand, seven hundred forty-one".