1455989142207 has 4 divisors (see below), whose sum is σ = 1941318856280. Its totient is φ = 970659428136.

The previous prime is 1455989142191. The next prime is 1455989142317. The reversal of 1455989142207 is 7022419895541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1455989142207 - 2⁴ = 1455989142191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455989122207) 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, 242664857032 + ... + 242664857037.

It is an arithmetic number, because the mean of its divisors is an integer number (485329714070).

Almost surely, 2^{1455989142207} is an apocalyptic number.

1455989142207 is a deficient number, since it is larger than the sum of its proper divisors (485329714073).

1455989142207 is an equidigital number, since it uses as much as digits as its factorization.

1455989142207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485329714072.

The product of its (nonzero) digits is 7257600, while the sum is 57.

The spelling of 1455989142207 in words is "one trillion, four hundred fifty-five billion, nine hundred eighty-nine million, one hundred forty-two thousand, two hundred seven".