1542203145 has 56 divisors (see below), whose sum is σ = 3171134016. Its totient is φ = 704995488.

The previous prime is 1542203099. The next prime is 1542203149. The reversal of 1542203145 is 5413022451.

1542203145 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1542203145 - 2²⁷ = 1407985417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1542203149) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4707 + ... + 55736.

Almost surely, 2^1542203145 is an apocalyptic number.

1542203145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1542203145 is an abundant number, since it is smaller than the sum of its proper divisors (1628930871).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1542203145 is an frugal number, since it uses more digits than its factorization.

1542203145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60473 (or 60458 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1542203145 is about 39270.8943748420. The cubic root of 1542203145 is about 1155.3507789342.

Adding to 1542203145 its reverse (5413022451), we get a palindrome (6955225596).

The spelling of 1542203145 in words is "one billion, five hundred forty-two million, two hundred three thousand, one hundred forty-five".