107651421 has 12 divisors (see below), whose sum is σ = 157627548. Its totient is φ = 70784064.

The previous prime is 107651419. The next prime is 107651443. The reversal of 107651421 is 124156701.

It is a happy number.

107651421 is a `hidden beast` number, since 1 + 0 + 7 + 651 + 4 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 87048900 + 20602521 = 9330^2 + 4539^2 .

It is not a de Polignac number, because 107651421 - 2¹ = 107651419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107651491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81270 + ... + 82583.

It is an arithmetic number, because the mean of its divisors is an integer number (13135629).

Almost surely, 2^107651421 is an apocalyptic number.

It is an amenable number.

107651421 is a deficient number, since it is larger than the sum of its proper divisors (49976127).

107651421 is a wasteful number, since it uses less digits than its factorization.

107651421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163932 (or 163929 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 107651421 is about 10375.5202761115. The cubic root of 107651421 is about 475.7074164680.

The spelling of 107651421 in words is "one hundred seven million, six hundred fifty-one thousand, four hundred twenty-one".