142455001 has 12 divisors (see below), whose sum is σ = 157851408. Its totient is φ = 128432304.

The previous prime is 142454987. The next prime is 142455007. The reversal of 142455001 is 100554241.

It is not a de Polignac number, because 142455001 - 2¹¹ = 142452953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142455007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2535 + ... + 17068.

It is an arithmetic number, because the mean of its divisors is an integer number (13154284).

Almost surely, 2^142455001 is an apocalyptic number.

It is an amenable number.

142455001 is a deficient number, since it is larger than the sum of its proper divisors (15396407).

142455001 is a wasteful number, since it uses less digits than its factorization.

142455001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19672 (or 19659 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 142455001 is about 11935.4514367912. The cubic root of 142455001 is about 522.2669775854.

The spelling of 142455001 in words is "one hundred forty-two million, four hundred fifty-five thousand, one".