142497945 has 48 divisors (see below), whose sum is σ = 253149312. Its totient is φ = 74131200.

The previous prime is 142497899. The next prime is 142497959. The reversal of 142497945 is 549794241.

142497945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142497945 - 2¹⁵ = 142465177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 142497945.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 455109 + ... + 455421.

It is an arithmetic number, because the mean of its divisors is an integer number (5273944).

Almost surely, 2^142497945 is an apocalyptic number.

142497945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142497945 is a deficient number, since it is larger than the sum of its proper divisors (110651367).

142497945 is a wasteful number, since it uses less digits than its factorization.

142497945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 539 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 142497945 is about 11937.2503115248. The cubic root of 142497945 is about 522.3194525882.

The spelling of 142497945 in words is "one hundred forty-two million, four hundred ninety-seven thousand, nine hundred forty-five".