1420115145 has 16 divisors (see below), whose sum is σ = 2405842560. Its totient is φ = 712841984.

The previous prime is 1420115129. The next prime is 1420115149. The reversal of 1420115145 is 5415110241.

It is a cyclic number.

It is not a de Polignac number, because 1420115145 - 2⁴ = 1420115129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420115149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2784285 + ... + 2784794.

It is an arithmetic number, because the mean of its divisors is an integer number (150365160).

Almost surely, 2^1420115145 is an apocalyptic number.

1420115145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1420115145 is a deficient number, since it is larger than the sum of its proper divisors (985727415).

1420115145 is a wasteful number, since it uses less digits than its factorization.

1420115145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569104.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1420115145 is about 37684.4151473789. The cubic root of 1420115145 is about 1124.0212445274.

Adding to 1420115145 its reverse (5415110241), we get a palindrome (6835225386).

The spelling of 1420115145 in words is "one billion, four hundred twenty million, one hundred fifteen thousand, one hundred forty-five".