1949251 has 2 divisors, whose sum is σ = 1949252. Its totient is φ = 1949250.

The previous prime is 1949201. The next prime is 1949257. The reversal of 1949251 is 1529491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1949251 - 2¹⁹ = 1424963 is a prime.

It is a super-2 number, since 2×1949251² = 7599158922002, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (1949257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974625 + 974626.

It is an arithmetic number, because the mean of its divisors is an integer number (974626).

2^1949251 is an apocalyptic number.

1949251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1949251 is an equidigital number, since it uses as much as digits as its factorization.

1949251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 31.

The square root of 1949251 is about 1396.1557935990. The cubic root of 1949251 is about 124.9172999644.

The spelling of 1949251 in words is "one million, nine hundred forty-nine thousand, two hundred fifty-one".