1954151 has 2 divisors, whose sum is σ = 1954152. Its totient is φ = 1954150.

The previous prime is 1954111. The next prime is 1954153. The reversal of 1954151 is 1514591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1954151 - 2⁶ = 1954087 is a prime.

It is a super-2 number, since 2×1954151² = 7637412261602, which contains 22 as substring.

Together with 1954153, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1954151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1954153) 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, 977075 + 977076.

It is an arithmetic number, because the mean of its divisors is an integer number (977076).

2^1954151 is an apocalyptic number.

1954151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954151 is an equidigital number, since it uses as much as digits as its factorization.

1954151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 26.

The square root of 1954151 is about 1397.9095106623. The cubic root of 1954151 is about 125.0218841684.

The spelling of 1954151 in words is "one million, nine hundred fifty-four thousand, one hundred fifty-one".