1455145551 has 12 divisors (see below), whose sum is σ = 2115266712. Its totient is φ = 963917136.

The previous prime is 1455145513. The next prime is 1455145561. The reversal of 1455145551 is 1555415541.

1455145551 is a `hidden beast` number, since 1 + 4 + 551 + 4 + 55 + 51 = 666.

It is not a de Polignac number, because 1455145551 - 2¹⁵ = 1455112783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455145561) 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, 513501 + ... + 516326.

It is an arithmetic number, because the mean of its divisors is an integer number (176272226).

Almost surely, 2^1455145551 is an apocalyptic number.

1455145551 is a deficient number, since it is larger than the sum of its proper divisors (660121161).

1455145551 is a wasteful number, since it uses less digits than its factorization.

1455145551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029990 (or 1029987 counting only the distinct ones).

The product of its digits is 50000, while the sum is 36.

The square root of 1455145551 is about 38146.3700894331. The cubic root of 1455145551 is about 1133.1884654989.

The spelling of 1455145551 in words is "one billion, four hundred fifty-five million, one hundred forty-five thousand, five hundred fifty-one".