1520131 has 2 divisors, whose sum is σ = 1520132. Its totient is φ = 1520130.

The previous prime is 1520107. The next prime is 1520143. The reversal of 1520131 is 1310251.

It is a strong prime.

It is an emirp because it is prime and its reverse (1310251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1520131 - 2⁷ = 1520003 is a prime.

It is a super-2 number, since 2×1520131² = 4621596514322, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1523131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760065 + 760066.

It is an arithmetic number, because the mean of its divisors is an integer number (760066).

2^1520131 is an apocalyptic number.

1520131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1520131 is an equidigital number, since it uses as much as digits as its factorization.

1520131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1520131 is about 1232.9359269646. The cubic root of 1520131 is about 114.9812445784.

Adding to 1520131 its reverse (1310251), we get a palindrome (2830382).

The spelling of 1520131 in words is "one million, five hundred twenty thousand, one hundred thirty-one".