1950881 has 2 divisors, whose sum is σ = 1950882. Its totient is φ = 1950880.

The previous prime is 1950853. The next prime is 1950889. The reversal of 1950881 is 1880591.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1638400 + 312481 = 1280^2 + 559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1950881 is a prime.

It is a super-2 number, since 2×1950881² = 7611873352322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1950889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 975440 + 975441.

It is an arithmetic number, because the mean of its divisors is an integer number (975441).

2^1950881 is an apocalyptic number.

It is an amenable number.

1950881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1950881 is an equidigital number, since it uses as much as digits as its factorization.

1950881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 1950881 is about 1396.7394173574. The cubic root of 1950881 is about 124.9521096545.

The spelling of 1950881 in words is "one million, nine hundred fifty thousand, eight hundred eighty-one".