1390151 has 4 divisors (see below), whose sum is σ = 1588752.
Its totient is φ = 1191552.
The previous prime is 1390121. The next prime is 1390157. The reversal of 1390151 is 1510931.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1510931 = 59 ⋅25609.
It is a cyclic number.
It is not a de Polignac number, because 1390151 - 26 = 1390087 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1390157) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99290 + ... + 99303.
It is an arithmetic number, because the mean of its divisors is an integer number (397188).
21390151 is an apocalyptic number.
1390151 is a deficient number, since it is larger than the sum of its proper divisors (198601).
1390151 is an equidigital number, since it uses as much as digits as its factorization.
1390151 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 198600.
The product of its (nonzero) digits is 135, while the sum is 20.
The square root of 1390151 is about 1179.0466487803.
The cubic root of 1390151 is about 111.6059440658.
The spelling of 1390151 in words is "one million, three hundred ninety thousand, one hundred fifty-one".