201151546 has 4 divisors (see below), whose sum is σ = 301727322. Its totient is φ = 100575772.

The previous prime is 201151501. The next prime is 201151567. The reversal of 201151546 is 645151102.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 134908225 + 66243321 = 11615^2 + 8139^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201151546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50287885 + ... + 50287888.

Almost surely, 2^201151546 is an apocalyptic number.

201151546 is a deficient number, since it is larger than the sum of its proper divisors (100575776).

201151546 is a wasteful number, since it uses less digits than its factorization.

201151546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100575775.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 201151546 is about 14182.7904870657. The cubic root of 201151546 is about 585.9237806959.

The spelling of 201151546 in words is "two hundred one million, one hundred fifty-one thousand, five hundred forty-six".