142365949 has 4 divisors (see below), whose sum is σ = 155308320. Its totient is φ = 129423580.

The previous prime is 142365943. The next prime is 142365967. The reversal of 142365949 is 949563241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 949563241 = 11 ⋅86323931.

It is not a de Polignac number, because 142365949 - 2¹³ = 142357757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142365943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6471169 + ... + 6471190.

It is an arithmetic number, because the mean of its divisors is an integer number (38827080).

Almost surely, 2^142365949 is an apocalyptic number.

It is an amenable number.

142365949 is a deficient number, since it is larger than the sum of its proper divisors (12942371).

142365949 is a wasteful number, since it uses less digits than its factorization.

142365949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12942370.

The product of its digits is 233280, while the sum is 43.

The square root of 142365949 is about 11931.7202866980. The cubic root of 142365949 is about 522.1581277423.

The spelling of 142365949 in words is "one hundred forty-two million, three hundred sixty-five thousand, nine hundred forty-nine".