70851261 has 8 divisors (see below), whose sum is σ = 101735200. Its totient is φ = 43600752.

The previous prime is 70851241. The next prime is 70851281. The reversal of 70851261 is 16215807.

It is an interprime number because it is at equal distance from previous prime (70851241) and next prime (70851281).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70851261 - 2⁹ = 70850749 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 (70851211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 908311 + ... + 908388.

It is an arithmetic number, because the mean of its divisors is an integer number (12716900).

Almost surely, 2^70851261 is an apocalyptic number.

It is an amenable number.

70851261 is a deficient number, since it is larger than the sum of its proper divisors (30883939).

70851261 is a wasteful number, since it uses less digits than its factorization.

70851261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816715.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 70851261 is about 8417.3191100255. The cubic root of 70851261 is about 413.7924173463.

The spelling of 70851261 in words is "seventy million, eight hundred fifty-one thousand, two hundred sixty-one".