420154107 has 4 divisors (see below), whose sum is σ = 560205480. Its totient is φ = 280102736.

The previous prime is 420154069. The next prime is 420154123. The reversal of 420154107 is 701451024.

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 420154107 - 2¹² = 420150011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420154127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70025682 + ... + 70025687.

It is an arithmetic number, because the mean of its divisors is an integer number (140051370).

Almost surely, 2^420154107 is an apocalyptic number.

420154107 is a deficient number, since it is larger than the sum of its proper divisors (140051373).

420154107 is a wasteful number, since it uses less digits than its factorization.

420154107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140051372.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 420154107 is about 20497.6610129058. The cubic root of 420154107 is about 748.9788217800.

The spelling of 420154107 in words is "four hundred twenty million, one hundred fifty-four thousand, one hundred seven".