142507061 has 4 divisors (see below), whose sum is σ = 143918124. Its totient is φ = 141096000.

The previous prime is 142507051. The next prime is 142507069. The reversal of 142507061 is 160705241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160705241 = 101 ⋅1591141.

It can be written as a sum of positive squares in 2 ways, for example, as 78411025 + 64096036 = 8855^2 + 8006^2 .

It is a cyclic number.

It is not a de Polignac number, because 142507061 - 2⁶ = 142506997 is a prime.

It is a super-3 number, since 3×142507061³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142507061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142507069) 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, 705380 + ... + 705581.

It is an arithmetic number, because the mean of its divisors is an integer number (35979531).

Almost surely, 2^142507061 is an apocalyptic number.

It is an amenable number.

142507061 is a deficient number, since it is larger than the sum of its proper divisors (1411063).

142507061 is a wasteful number, since it uses less digits than its factorization.

142507061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411062.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 142507061 is about 11937.6321353944. The cubic root of 142507061 is about 522.3305904392.

The spelling of 142507061 in words is "one hundred forty-two million, five hundred seven thousand, sixty-one".