1420151 has 2 divisors, whose sum is σ = 1420152. Its totient is φ = 1420150.

The previous prime is 1420123. The next prime is 1420169. The reversal of 1420151 is 1510241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1420151 - 2¹⁸ = 1158007 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710075 + 710076.

It is an arithmetic number, because the mean of its divisors is an integer number (710076).

2^1420151 is an apocalyptic number.

1420151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420151 is an equidigital number, since it uses as much as digits as its factorization.

1420151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1420151 is about 1191.7008852896. The cubic root of 1420151 is about 112.4030704193.

Adding to 1420151 its reverse (1510241), we get a palindrome (2930392).

The spelling of 1420151 in words is "one million, four hundred twenty thousand, one hundred fifty-one".