1513151 has 2 divisors, whose sum is σ = 1513152. Its totient is φ = 1513150.

The previous prime is 1513139. The next prime is 1513159.

1513151 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 1513151 - 2¹⁰ = 1512127 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1513159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756575 + 756576.

It is an arithmetic number, because the mean of its divisors is an integer number (756576).

2^1513151 is an apocalyptic number.

1513151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1513151 is an equidigital number, since it uses as much as digits as its factorization.

1513151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75, while the sum is 17.

The square root of 1513151 is about 1230.1020282887. The cubic root of 1513151 is about 114.8049877035.

The spelling of 1513151 in words is "one million, five hundred thirteen thousand, one hundred fifty-one".