1901047 has 8 divisors (see below), whose sum is σ = 1965600. Its totient is φ = 1837440.

The previous prime is 1901033. The next prime is 1901087. The reversal of 1901047 is 7401091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1901047 is a prime.

It is a super-2 number, since 2×1901047² = 7227959392418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8043 + ... + 8275.

It is an arithmetic number, because the mean of its divisors is an integer number (245700).

2^1901047 is an apocalyptic number.

1901047 is a deficient number, since it is larger than the sum of its proper divisors (64553).

1901047 is a wasteful number, since it uses less digits than its factorization.

1901047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1901047 is about 1378.7846097197. The cubic root of 1901047 is about 123.8789792198.

The spelling of 1901047 in words is "one million, nine hundred one thousand, forty-seven".