1545201499 has 2 divisors, whose sum is σ = 1545201500. Its totient is φ = 1545201498.

The previous prime is 1545201487. The next prime is 1545201509. The reversal of 1545201499 is 9941025451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1545201499 - 2¹¹ = 1545199451 is a prime.

It is not a weakly prime, because it can be changed into another prime (1545201299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772600749 + 772600750.

It is an arithmetic number, because the mean of its divisors is an integer number (772600750).

Almost surely, 2^1545201499 is an apocalyptic number.

1545201499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545201499 is an equidigital number, since it uses as much as digits as its factorization.

1545201499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 1545201499 is about 39309.0511078556. The cubic root of 1545201499 is about 1156.0990392093.

The spelling of 1545201499 in words is "one billion, five hundred forty-five million, two hundred one thousand, four hundred ninety-nine".