1485457397 has 4 divisors (see below), whose sum is σ = 1485837696. Its totient is φ = 1485077100.

The previous prime is 1485457381. The next prime is 1485457423. The reversal of 1485457397 is 7937545841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1485457397 - 2⁴ = 1485457381 is a prime.

It is a super-3 number, since 3×1485457397³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485457307) 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, 184229 + ... + 192122.

It is an arithmetic number, because the mean of its divisors is an integer number (371459424).

Almost surely, 2^1485457397 is an apocalyptic number.

It is an amenable number.

1485457397 is a deficient number, since it is larger than the sum of its proper divisors (380299).

1485457397 is an equidigital number, since it uses as much as digits as its factorization.

1485457397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380298.

The product of its digits is 4233600, while the sum is 53.

The square root of 1485457397 is about 38541.6319971015. The cubic root of 1485457397 is about 1141.0028614935.

It can be divided in two parts, 148 and 5457397, that added together give a palindrome (5457545).

The spelling of 1485457397 in words is "one billion, four hundred eighty-five million, four hundred fifty-seven thousand, three hundred ninety-seven".