1901047201 has 9 divisors (see below), whose sum is σ = 1936434801. Its totient is φ = 1866297204.

The previous prime is 1901047177. The next prime is 1901047273. The reversal of 1901047201 is 1027401091.

The square root of 1901047201 is 43601.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1901047201 - 2²¹ = 1898950049 is a prime.

It is a super-2 number, since 2×1901047201² = 7227960920859868802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1901042201) by changing a digit.

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 in 8 ways as a sum of consecutive naturals, for example, 2572090 + ... + 2572828.

Almost surely, 2^1901047201 is an apocalyptic number.

1901047201 is the 43601-st square number.

1901047201 is the 21801-st centered octagonal number.

It is an amenable number.

1901047201 is a deficient number, since it is larger than the sum of its proper divisors (35387600).

1901047201 is an frugal number, since it uses more digits than its factorization.

1901047201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 25.

The cubic root of 1901047201 is about 1238.7898358573.

Multiplying 1901047201 by its sum of digits (25), we get a square (47526180025 = 218005²).

Adding to 1901047201 its reverse (1027401091), we get a palindrome (2928448292).

The spelling of 1901047201 in words is "one billion, nine hundred one million, forty-seven thousand, two hundred one".