1490121 has 6 divisors (see below), whose sum is σ = 2152410. Its totient is φ = 993408.

The previous prime is 1490119. The next prime is 1490129. The reversal of 1490121 is 1210941.

It can be written as a sum of positive squares in only one way, i.e., 881721 + 608400 = 939^2 + 780^2 .

It is not a de Polignac number, because 1490121 - 2¹ = 1490119 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1490094 and 1490103.

It is not an unprimeable number, because it can be changed into a prime (1490129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82776 + ... + 82793.

It is an arithmetic number, because the mean of its divisors is an integer number (358735).

2^1490121 is an apocalyptic number.

It is an amenable number.

1490121 is a deficient number, since it is larger than the sum of its proper divisors (662289).

1490121 is a wasteful number, since it uses less digits than its factorization.

1490121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165575 (or 165572 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1490121 is about 1220.7051240984. The cubic root of 1490121 is about 114.2195676008.

The spelling of 1490121 in words is "one million, four hundred ninety thousand, one hundred twenty-one".