201451022 has 4 divisors (see below), whose sum is σ = 302176536. Its totient is φ = 100725510.

The previous prime is 201451013. The next prime is 201451057. The reversal of 201451022 is 220154102.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50362754 + ... + 50362757.

It is an arithmetic number, because the mean of its divisors is an integer number (75544134).

Almost surely, 2^201451022 is an apocalyptic number.

201451022 is a deficient number, since it is larger than the sum of its proper divisors (100725514).

201451022 is a wasteful number, since it uses less digits than its factorization.

201451022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100725513.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 201451022 is about 14193.3442852627. The cubic root of 201451022 is about 586.2144124860.

The spelling of 201451022 in words is "two hundred one million, four hundred fifty-one thousand, twenty-two".