142625665 has 32 divisors (see below), whose sum is σ = 223050240. Its totient is φ = 84962304.

The previous prime is 142625663. The next prime is 142625669. The reversal of 142625665 is 566526241.

It is not a de Polignac number, because 142625665 - 2¹ = 142625663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142625663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1485 + ... + 16954.

It is an arithmetic number, because the mean of its divisors is an integer number (6970320).

Almost surely, 2^142625665 is an apocalyptic number.

It is an amenable number.

142625665 is a deficient number, since it is larger than the sum of its proper divisors (80424575).

142625665 is a wasteful number, since it uses less digits than its factorization.

142625665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18481.

The product of its digits is 86400, while the sum is 37.

The square root of 142625665 is about 11942.5987540401. The cubic root of 142625665 is about 522.4754565213.

Adding to 142625665 its product of digits (86400), we get a triangular number (142712065 = T₁₆₈₉₄).

It can be divided in two parts, 1426 and 25665, that multiplied together give a triangular number (36598290 = T₈₅₅₅).

The spelling of 142625665 in words is "one hundred forty-two million, six hundred twenty-five thousand, six hundred sixty-five".