1456133531 has 4 divisors (see below), whose sum is σ = 1456371000. Its totient is φ = 1455896064.

The previous prime is 1456133449. The next prime is 1456133543. The reversal of 1456133531 is 1353316541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1456133531 - 2¹⁴ = 1456117147 is a prime.

It is a super-2 number, since 2×1456133531² = 4240649720205055922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1456133431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109286 + ... + 121883.

It is an arithmetic number, because the mean of its divisors is an integer number (364092750).

Almost surely, 2^1456133531 is an apocalyptic number.

1456133531 is a deficient number, since it is larger than the sum of its proper divisors (237469).

1456133531 is an equidigital number, since it uses as much as digits as its factorization.

1456133531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237468.

The product of its digits is 16200, while the sum is 32.

The square root of 1456133531 is about 38159.3177480940. The cubic root of 1456133531 is about 1133.4448692325. Note that the first 3 decimals are identical.

The spelling of 1456133531 in words is "one billion, four hundred fifty-six million, one hundred thirty-three thousand, five hundred thirty-one".