70413251 has 4 divisors (see below), whose sum is σ = 70454400. Its totient is φ = 70372104.

The previous prime is 70413241. The next prime is 70413283. The reversal of 70413251 is 15231407.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 70413251 - 2²² = 66218947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70413241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17891 + ... + 21468.

It is an arithmetic number, because the mean of its divisors is an integer number (17613600).

Almost surely, 2^70413251 is an apocalyptic number.

70413251 is a deficient number, since it is larger than the sum of its proper divisors (41149).

70413251 is a wasteful number, since it uses less digits than its factorization.

70413251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41148.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 70413251 is about 8391.2603940052. The cubic root of 70413251 is about 412.9379512691.

Adding to 70413251 its reverse (15231407), we get a palindrome (85644658).

The spelling of 70413251 in words is "seventy million, four hundred thirteen thousand, two hundred fifty-one".