1455213231 has 12 divisors (see below), whose sum is σ = 2131580880. Its totient is φ = 956477760.

The previous prime is 1455213223. The next prime is 1455213233. The reversal of 1455213231 is 1323125541.

It is not a de Polignac number, because 1455213231 - 2³ = 1455213223 is a prime.

It is a super-2 number, since 2×1455213231² = 4235291095354918722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1455213195 and 1455213204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455213233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1138026 + ... + 1139303.

It is an arithmetic number, because the mean of its divisors is an integer number (177631740).

Almost surely, 2^1455213231 is an apocalyptic number.

1455213231 is a deficient number, since it is larger than the sum of its proper divisors (676367649).

1455213231 is a wasteful number, since it uses less digits than its factorization.

1455213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277406 (or 2277403 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1455213231 is about 38147.2571884271. The cubic root of 1455213231 is about 1133.2060337314.

Adding to 1455213231 its reverse (1323125541), we get a palindrome (2778338772).

The spelling of 1455213231 in words is "one billion, four hundred fifty-five million, two hundred thirteen thousand, two hundred thirty-one".