1513431 has 8 divisors (see below), whose sum is σ = 2242160. Its totient is φ = 1008936.

The previous prime is 1513429. The next prime is 1513441. The reversal of 1513431 is 1343151.

It is not a de Polignac number, because 1513431 - 2¹ = 1513429 is a prime.

It is a super-2 number, since 2×1513431² = 4580946783522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28000 + ... + 28053.

It is an arithmetic number, because the mean of its divisors is an integer number (280270).

2^1513431 is an apocalyptic number.

1513431 is a deficient number, since it is larger than the sum of its proper divisors (728729).

1513431 is an equidigital number, since it uses as much as digits as its factorization.

1513431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56062 (or 56056 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 1513431 is about 1230.2158347217. The cubic root of 1513431 is about 114.8120686038.

Adding to 1513431 its reverse (1343151), we get a palindrome (2856582).

The spelling of 1513431 in words is "one million, five hundred thirteen thousand, four hundred thirty-one".