1520253 has 24 divisors (see below), whose sum is σ = 2558400. Its totient is φ = 851904.

The previous prime is 1520251. The next prime is 1520287. The reversal of 1520253 is 3520251.

It is a happy number.

It is not a de Polignac number, because 1520253 - 2¹ = 1520251 is a prime.

It is a super-2 number, since 2×1520253² = 4622338368018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520251) 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 in 23 ways as a sum of consecutive naturals, for example, 3513 + ... + 3921.

It is an arithmetic number, because the mean of its divisors is an integer number (106600).

2^1520253 is an apocalyptic number.

It is an amenable number.

1520253 is a deficient number, since it is larger than the sum of its proper divisors (1038147).

1520253 is a wasteful number, since it uses less digits than its factorization.

1520253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1520253 is about 1232.9854013734. The cubic root of 1520253 is about 114.9843204836.

The spelling of 1520253 in words is "one million, five hundred twenty thousand, two hundred fifty-three".