1552124491 has 2 divisors, whose sum is σ = 1552124492. Its totient is φ = 1552124490.

The previous prime is 1552124473. The next prime is 1552124521. The reversal of 1552124491 is 1944212551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1552124491 - 2⁷ = 1552124363 is a prime.

It is not a weakly prime, because it can be changed into another prime (1552124401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776062245 + 776062246.

It is an arithmetic number, because the mean of its divisors is an integer number (776062246).

Almost surely, 2^1552124491 is an apocalyptic number.

1552124491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552124491 is an equidigital number, since it uses as much as digits as its factorization.

1552124491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 34.

The square root of 1552124491 is about 39397.0111937441. The cubic root of 1552124491 is about 1157.8230303488.

The spelling of 1552124491 in words is "one billion, five hundred fifty-two million, one hundred twenty-four thousand, four hundred ninety-one".