142253961 has 16 divisors (see below), whose sum is σ = 199920960. Its totient is φ = 89835200.

The previous prime is 142253941. The next prime is 142253963. The reversal of 142253961 is 169352241.

It is a cyclic number.

It is not a de Polignac number, because 142253961 - 2⁷ = 142253833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142253963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10815 + ... + 20036.

It is an arithmetic number, because the mean of its divisors is an integer number (12495060).

Almost surely, 2^142253961 is an apocalyptic number.

It is an amenable number.

142253961 is a deficient number, since it is larger than the sum of its proper divisors (57666999).

142253961 is a wasteful number, since it uses less digits than its factorization.

142253961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30936.

The product of its digits is 12960, while the sum is 33.

The square root of 142253961 is about 11927.0264944788. The cubic root of 142253961 is about 522.0211783660.

The spelling of 142253961 in words is "one hundred forty-two million, two hundred fifty-three thousand, nine hundred sixty-one".