1497201001 has 4 divisors (see below), whose sum is σ = 1510936900. Its totient is φ = 1483465104.

The previous prime is 1497200989. The next prime is 1497201023. The reversal of 1497201001 is 1001027941.

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

It can be written as a sum of positive squares in 2 ways, for example, as 751856400 + 745344601 = 27420^2 + 27301^2 .

It is a cyclic number.

It is not a de Polignac number, because 1497201001 - 2²⁷ = 1362983273 is a prime.

It is a super-2 number, since 2×1497201001² = 4483221674790804002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1497201091) 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, 6867786 + ... + 6868003.

It is an arithmetic number, because the mean of its divisors is an integer number (377734225).

Almost surely, 2^1497201001 is an apocalyptic number.

It is an amenable number.

1497201001 is a deficient number, since it is larger than the sum of its proper divisors (13735899).

1497201001 is a wasteful number, since it uses less digits than its factorization.

1497201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13735898.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 1497201001 is about 38693.6816676832. The cubic root of 1497201001 is about 1144.0017872179.

Adding to 1497201001 its reverse (1001027941), we get a palindrome (2498228942).

The spelling of 1497201001 in words is "one billion, four hundred ninety-seven million, two hundred one thousand, one".