1531103245455 has 16 divisors (see below), whose sum is σ = 2799731649024. Its totient is φ = 699932912160.

The previous prime is 1531103245433. The next prime is 1531103245513. The reversal of 1531103245455 is 5545423011351.

It is not a de Polignac number, because 1531103245455 - 2¹⁷ = 1531103114383 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7290967731 + ... + 7290967940.

It is an arithmetic number, because the mean of its divisors is an integer number (174983228064).

Almost surely, 2^{1531103245455} is an apocalyptic number.

1531103245455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1531103245455 is a deficient number, since it is larger than the sum of its proper divisors (1268628403569).

1531103245455 is a wasteful number, since it uses less digits than its factorization.

1531103245455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14581935686.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 1531103245455 in words is "one trillion, five hundred thirty-one billion, one hundred three million, two hundred forty-five thousand, four hundred fifty-five".