68944131 has 6 divisors (see below), whose sum is σ = 99585980. Its totient is φ = 45962748.

The previous prime is 68944123. The next prime is 68944157. The reversal of 68944131 is 13144986.

It is not a de Polignac number, because 68944131 - 2³ = 68944123 is a prime.

It is a super-2 number, since 2×68944131² = 9506586398690322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68944181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3830221 + ... + 3830238.

Almost surely, 2^68944131 is an apocalyptic number.

68944131 is a deficient number, since it is larger than the sum of its proper divisors (30641849).

68944131 is a wasteful number, since it uses less digits than its factorization.

68944131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7660465 (or 7660462 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 68944131 is about 8303.2602632942. The cubic root of 68944131 is about 410.0458624088.

It can be divided in two parts, 6894 and 4131, that added together give a square (11025 = 105²).

The spelling of 68944131 in words is "sixty-eight million, nine hundred forty-four thousand, one hundred thirty-one".