1495440001 has 4 divisors (see below), whose sum is σ = 1631389104. Its totient is φ = 1359490900.

The previous prime is 1495439987. The next prime is 1495440041. The reversal of 1495440001 is 1000445941.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1000445941 = 11 ⋅90949631.

It is a cyclic number.

It is not a de Polignac number, because 1495440001 - 2¹¹ = 1495437953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1495440041) 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, 67974535 + ... + 67974556.

It is an arithmetic number, because the mean of its divisors is an integer number (407847276).

Almost surely, 2^1495440001 is an apocalyptic number.

1495440001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1495440001 is a deficient number, since it is larger than the sum of its proper divisors (135949103).

1495440001 is a wasteful number, since it uses less digits than its factorization.

1495440001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135949102.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1495440001 is about 38670.9193193025. The cubic root of 1495440001 is about 1143.5530882764.

Adding to 1495440001 its reverse (1000445941), we get a palindrome (2495885942).

The spelling of 1495440001 in words is "one billion, four hundred ninety-five million, four hundred forty thousand, one".