70511401 has 2 divisors, whose sum is σ = 70511402. Its totient is φ = 70511400.

The previous prime is 70511351. The next prime is 70511437. The reversal of 70511401 is 10411507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70157376 + 354025 = 8376^2 + 595^2 .

It is an emirp because it is prime and its reverse (10411507) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70511401 is a prime.

It is not a weakly prime, because it can be changed into another prime (70511201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35255700 + 35255701.

It is an arithmetic number, because the mean of its divisors is an integer number (35255701).

Almost surely, 2^70511401 is an apocalyptic number.

It is an amenable number.

70511401 is a deficient number, since it is larger than the sum of its proper divisors (1).

70511401 is an equidigital number, since it uses as much as digits as its factorization.

70511401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 70511401 is about 8397.1067040975. The cubic root of 70511401 is about 413.1297288213.

Adding to 70511401 its reverse (10411507), we get a palindrome (80922908).

The spelling of 70511401 in words is "seventy million, five hundred eleven thousand, four hundred one".