1507481 has 2 divisors, whose sum is σ = 1507482. Its totient is φ = 1507480.

The previous prime is 1507469. The next prime is 1507483. The reversal of 1507481 is 1847051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1401856 + 105625 = 1184^2 + 325^2 .

It is an emirp because it is prime and its reverse (1847051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1507481 - 2¹⁰ = 1506457 is a prime.

It is a super-2 number, since 2×1507481² = 4544997930722, which contains 22 as substring.

Together with 1507483, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1507481.

It is not a weakly prime, because it can be changed into another prime (1507483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 753740 + 753741.

It is an arithmetic number, because the mean of its divisors is an integer number (753741).

2^1507481 is an apocalyptic number.

It is an amenable number.

1507481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1507481 is an equidigital number, since it uses as much as digits as its factorization.

1507481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 1507481 is about 1227.7951783583. The cubic root of 1507481 is about 114.6614111452.

The spelling of 1507481 in words is "one million, five hundred seven thousand, four hundred eighty-one".