1455140445 has 32 divisors (see below), whose sum is σ = 2593935360. Its totient is φ = 690507840.

The previous prime is 1455140419. The next prime is 1455140447. The reversal of 1455140445 is 5440415541.

It is not a de Polignac number, because 1455140445 - 2⁵ = 1455140413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455140447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86065 + ... + 101574.

It is an arithmetic number, because the mean of its divisors is an integer number (81060480).

Almost surely, 2^1455140445 is an apocalyptic number.

1455140445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1455140445 is a deficient number, since it is larger than the sum of its proper divisors (1138794915).

1455140445 is a wasteful number, since it uses less digits than its factorization.

1455140445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187705.

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 1455140445 is about 38146.3031629541. The cubic root of 1455140445 is about 1133.1871400720.

Adding to 1455140445 its reverse (5440415541), we get a palindrome (6895555986).

The spelling of 1455140445 in words is "one billion, four hundred fifty-five million, one hundred forty thousand, four hundred forty-five".