1457155215 has 12 divisors (see below), whose sum is σ = 2525735784. Its totient is φ = 777149424.

The previous prime is 1457155213. The next prime is 1457155283. The reversal of 1457155215 is 5125517541.

1457155215 is a `hidden beast` number, since 14 + 571 + 55 + 21 + 5 = 666.

It is not a de Polignac number, because 1457155215 - 2¹ = 1457155213 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1457155215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457155213) 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, 16190569 + ... + 16190658.

It is an arithmetic number, because the mean of its divisors is an integer number (210477982).

Almost surely, 2^1457155215 is an apocalyptic number.

1457155215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1457155215 is a deficient number, since it is larger than the sum of its proper divisors (1068580569).

1457155215 is a wasteful number, since it uses less digits than its factorization.

1457155215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32381238 (or 32381235 counting only the distinct ones).

The product of its digits is 35000, while the sum is 36.

The square root of 1457155215 is about 38172.7024848910. The cubic root of 1457155215 is about 1133.7098979838.

The spelling of 1457155215 in words is "one billion, four hundred fifty-seven million, one hundred fifty-five thousand, two hundred fifteen".