142725649 has 8 divisors (see below), whose sum is σ = 162470592. Its totient is φ = 124109040.

The previous prime is 142725647. The next prime is 142725677. The reversal of 142725649 is 946527241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142725649 - 2¹ = 142725647 is a prime.

It is a super-2 number, since 2×142725649² = 40741221764942402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142725647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281814 + ... + 282319.

It is an arithmetic number, because the mean of its divisors is an integer number (20308824).

Almost surely, 2^142725649 is an apocalyptic number.

It is an amenable number.

142725649 is a deficient number, since it is larger than the sum of its proper divisors (19744943).

142725649 is a wasteful number, since it uses less digits than its factorization.

142725649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564167.

The product of its digits is 120960, while the sum is 40.

The square root of 142725649 is about 11946.7840442522. The cubic root of 142725649 is about 522.5975172641.

The spelling of 142725649 in words is "one hundred forty-two million, seven hundred twenty-five thousand, six hundred forty-nine".