70144377 has 16 divisors (see below), whose sum is σ = 95253312. Its totient is φ = 45904320.

The previous prime is 70144369. The next prime is 70144381. The reversal of 70144377 is 77344107.

It is not a de Polignac number, because 70144377 - 2³ = 70144369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70144367) 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 15 ways as a sum of consecutive naturals, for example, 92283 + ... + 93039.

It is an arithmetic number, because the mean of its divisors is an integer number (5953332).

Almost surely, 2^70144377 is an apocalyptic number.

It is an amenable number.

70144377 is a deficient number, since it is larger than the sum of its proper divisors (25108935).

70144377 is a wasteful number, since it uses less digits than its factorization.

70144377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288.

The product of its (nonzero) digits is 16464, while the sum is 33.

The square root of 70144377 is about 8375.2239970045. The cubic root of 70144377 is about 412.4116776926.

It can be divided in two parts, 701443 and 77, that added together give a triangular number (701520 = T₁₁₈₄).

The spelling of 70144377 in words is "seventy million, one hundred forty-four thousand, three hundred seventy-seven".