142251001 has 4 divisors (see below), whose sum is σ = 142279504. Its totient is φ = 142222500.

The previous prime is 142250989. The next prime is 142251013. The reversal of 142251001 is 100152241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (142250989) and next prime (142251013).

It is a cyclic number.

It is not a de Polignac number, because 142251001 - 2⁹ = 142250489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142251401) 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, 4575 + ... + 17476.

It is an arithmetic number, because the mean of its divisors is an integer number (35569876).

Almost surely, 2^142251001 is an apocalyptic number.

It is an amenable number.

142251001 is a deficient number, since it is larger than the sum of its proper divisors (28503).

142251001 is an equidigital number, since it uses as much as digits as its factorization.

142251001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28502.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 142251001 is about 11926.9024059057. The cubic root of 142251001 is about 522.0175576269.

The spelling of 142251001 in words is "one hundred forty-two million, two hundred fifty-one thousand, one".