70869151 has 4 divisors (see below), whose sum is σ = 70938400. Its totient is φ = 70799904.

The previous prime is 70869137. The next prime is 70869163. The reversal of 70869151 is 15196807.

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

It is a cyclic number.

It is not a de Polignac number, because 70869151 - 2¹⁵ = 70836383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70869151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70869121) 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, 33066 + ... + 35143.

It is an arithmetic number, because the mean of its divisors is an integer number (17734600).

Almost surely, 2^70869151 is an apocalyptic number.

70869151 is a deficient number, since it is larger than the sum of its proper divisors (69249).

70869151 is a wasteful number, since it uses less digits than its factorization.

70869151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69248.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 70869151 is about 8418.3817328510. The cubic root of 70869151 is about 413.8272420540.

It can be divided in two parts, 70 and 869151, that added together give a triangular number (869221 = T₁₃₁₈).

The spelling of 70869151 in words is "seventy million, eight hundred sixty-nine thousand, one hundred fifty-one".