142365919 has 6 divisors (see below), whose sum is σ = 147026976. Its totient is φ = 137709180.

The previous prime is 142365907. The next prime is 142365943. The reversal of 142365919 is 919563241.

It is not a de Polignac number, because 142365919 - 2¹³ = 142357727 is a prime.

It is a super-2 number, since 2×142365919² = 40536109785429122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142362919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65362 + ... + 67504.

It is an arithmetic number, because the mean of its divisors is an integer number (24504496).

Almost surely, 2^142365919 is an apocalyptic number.

142365919 is a deficient number, since it is larger than the sum of its proper divisors (4661057).

142365919 is an frugal number, since it uses more digits than its factorization.

142365919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317 (or 2174 counting only the distinct ones).

The product of its digits is 58320, while the sum is 40.

The square root of 142365919 is about 11931.7190295447. The cubic root of 142365919 is about 522.1580910651.

The spelling of 142365919 in words is "one hundred forty-two million, three hundred sixty-five thousand, nine hundred nineteen".