1520497 has 16 divisors (see below), whose sum is σ = 1804032. Its totient is φ = 1265920.

The previous prime is 1520483. The next prime is 1520501. The reversal of 1520497 is 7940251.

It is a happy number.

1520497 is nontrivially palindromic in base 16.

It is a cyclic number.

It is not a de Polignac number, because 1520497 - 2¹¹ = 1518449 is a prime.

It is a super-2 number, since 2×1520497² = 4623822254018, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

1520497 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1520417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8703 + ... + 8875.

It is an arithmetic number, because the mean of its divisors is an integer number (112752).

2^1520497 is an apocalyptic number.

1520497 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1520497 is a deficient number, since it is larger than the sum of its proper divisors (283535).

1520497 is a wasteful number, since it uses less digits than its factorization.

1520497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1520497 is about 1233.0843442360. The cubic root of 1520497 is about 114.9904718004.

The spelling of 1520497 in words is "one million, five hundred twenty thousand, four hundred ninety-seven".