1455212540422 has 4 divisors (see below), whose sum is σ = 2182818810636. Its totient is φ = 727606270210.

The previous prime is 1455212540387. The next prime is 1455212540437. The reversal of 1455212540422 is 2240452125541.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363803135104 + ... + 363803135107.

It is an arithmetic number, because the mean of its divisors is an integer number (545704702659).

Almost surely, 2^{1455212540422} is an apocalyptic number.

1455212540422 is a deficient number, since it is larger than the sum of its proper divisors (727606270214).

1455212540422 is an equidigital number, since it uses as much as digits as its factorization.

1455212540422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727606270213.

The product of its (nonzero) digits is 128000, while the sum is 37.

Adding to 1455212540422 its reverse (2240452125541), we get a palindrome (3695664665963).

The spelling of 1455212540422 in words is "one trillion, four hundred fifty-five billion, two hundred twelve million, five hundred forty thousand, four hundred twenty-two".