1542300989 has 2 divisors, whose sum is σ = 1542300990. Its totient is φ = 1542300988.

The previous prime is 1542300973. The next prime is 1542301027. The reversal of 1542300989 is 9890032451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1515778489 + 26522500 = 38933^2 + 5150^2 .

It is a cyclic number.

It is not a de Polignac number, because 1542300989 - 2⁴ = 1542300973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1542300919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771150494 + 771150495.

It is an arithmetic number, because the mean of its divisors is an integer number (771150495).

Almost surely, 2^1542300989 is an apocalyptic number.

It is an amenable number.

1542300989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542300989 is an equidigital number, since it uses as much as digits as its factorization.

1542300989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1542300989 is about 39272.1401122984. The cubic root of 1542300989 is about 1155.3752118915.

The spelling of 1542300989 in words is "one billion, five hundred forty-two million, three hundred thousand, nine hundred eighty-nine".