70230261 has 4 divisors (see below), whose sum is σ = 93640352. Its totient is φ = 46820172.

The previous prime is 70230239. The next prime is 70230263. The reversal of 70230261 is 16203207.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 70230261 - 2⁵ = 70230229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70230263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11705041 + ... + 11705046.

It is an arithmetic number, because the mean of its divisors is an integer number (23410088).

Almost surely, 2^70230261 is an apocalyptic number.

It is an amenable number.

70230261 is a deficient number, since it is larger than the sum of its proper divisors (23410091).

70230261 is a wasteful number, since it uses less digits than its factorization.

70230261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23410090.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 70230261 is about 8380.3496943743. The cubic root of 70230261 is about 412.5799264775.

Adding to 70230261 its reverse (16203207), we get a palindrome (86433468).

The spelling of 70230261 in words is "seventy million, two hundred thirty thousand, two hundred sixty-one".